The story is divided into 6 parts, one for each playable character, plus one unlockable once all 6 are completed.
Dr. Eggman is after the 7 chaos emeralds to unleash the power of Chaos, an ancient water creature, who Dr. Eggman believes will help him attain his goal of destroying Station Square to build Robotnikland. Sonic and Tails aim to collect the emeralds first to keep them out of Eggman's hands. Meanwhile, Knuckles is on the hunt for pieces of the Master Emerald, which was shattered to release Chaos, so that he can restore it and Angel Island. Unwittingly involved is Big The Cat when his best friend Froggy eats Chaos' tail and swallows Big's chaos emerald. A bird escaping from the Egg Carrier collides with Amy, who decides to protect it at all costs despite being continually chased by Zero, the first of Eggman's new E-Series robots. The wild card of E-102 Gamma as the robot who helps Amy and eventually turns against Eggman rounds out the 6 players. Throughout their adventures, Sonic, Tails, Knuckles, Amy, Big, and Gamma are shown various images of the past concerning chief Pachacamac of the Knuckles Clan, his daughter Tikal, the chao, Chaos, the Master Emerald, and the 7 chaos emeralds. Those images are key to understanding Chaos, the danger Chaos truly represents, and ultimately the way to defeat Chaos.

Hmm, not really much, but once my christmas holidays start I guess I can do more. n.n"

(Ingnore post)

If something is not done by yourself, then don't bother posting it basically. The point is not to take stuff from other people, but to post your own work and get credit for it.

Sonic's story

Story:
The story starts out in Station Square, where Sonic is having fun jumping from building top to building top at night. Suddenly he sees a few police cars rush by, sirens sounding. Always up for a challenge, Sonic followes them to see what all the fuss is about.
We're presented with a short confrontation between some policemen and a water creature, which is oblivious to their bullets, reason why they retreat soon after.
Sonic jumps in and the game begins with a boss fight.

Boss - Chaos 0
A fairly easy boss, it takes just three hits to defeat him.
It will try to walk up to you and attack you with its extendable arm or start spinning with its arm reached out. After two hits it will jump on the lampions surrounding the area and attack you from above; during this phase and while he's turned into a puddle of water you cannot attack him.
The best strategy is to use the Homing Attack to strike Chaos 0's brain when he is standing and dodge by running around in circles when he jumps on the lampions.

After being defeated Chaos 0 turns into a water puddle and goes down a manhole.
The camera tilts up to the top of a building to show Eggman laughing and mentioning that the water creature is the "god of destruction".

The next scene shows our hero chilling at a pool, when suddenly he sights Tails having trouble controlling his plane and then crashing. Sonic goes to rescue his friend.

Progress story:
I'm Sonic! Sonic the Hedgehog!
I'd just returned to town
after a long journey...
Suddenly, this liquid monster attacked me!
I had no trouble defeating it, though.
Then, while I was lounging by the pool,
I saw Tails' plane fly by, trailing smoke!
Then it fell from the sky, and
crashed near the seashore!
I've gotta go save Tails right away!!

Emerald Coast - Action &nbsp &nbsp &nbsp &nbsp
Description
The intro level, running around the coast line. Accessible by going to the pool area of the hotel. A nice chase scene with a whale is part of this level.

Emblems
C - Rescue Tails
B - Finish level with at least 50 rings
A - Finish level within 2 minutes

Animals
Koala, Penguin, Rabbit, Sea Otter, and Seal

Story:
After rescuing Tails, Sonic and Tails return to the hotel whose pool Sonic was sleeping at. Tails tells Sonic that he was experimenting with a new power source for the plane: a Chaos Emerald. Sonic then follows Tails to the Mystic Ruins, where Tails' workshop is located.

Progress story: I'm Sonic! Sonic the Hedgehog!
I ran across the Emerald Coast
and found Tails,
whom I haven't seen for a while.
He had a great idea about creating
something using a Chaos Emerald.
He just loves making machines!
What?
He has a workshop in Mystic Ruins?
OK, I'll go visit it if you want me to.

Upon arriving at the workshop the two encounter Eggman. A boss fight ensues.

Boss - Egg Hornet

The Egg Hornet will fly around in circles and fire a bunch of homing missiles, which are best avoided by running in circles yourself.
Eventually the Egg Hornet will charge and get momentarily stuck in the ground, which is your chance to hit.
Repeat until the fight is over. There will be more missiles to dodge after each successful hit.
Defeated in three hits.

Story:
Eggman takes advantage of a moment of distraction on Tails' behalf and snatches the Emerald he was holding, which he then "feeds" to Chaos, who grows bigger and with a powerful arm. Eggman explains that with every Emerald Chaos will grow more powerful and will eventually be invincible and help him take over Station Square. He then leaves the scene.
Sonic and Tails decide to collect as many Emeralds as possible.

Progress story:
I'm Sonic! Sonic the Hedgehog!
On the way to Tails' workshop,
I was confronted by that evil Eggman!
He stole the Chaos Emerald and
called for that liquid monster...
the one I met in Station Square!
It transformed when Eggman gave it
the Chaos Emerald.
He's planning to make that
monster super strong using
all the Chaos Emeralds!
I can't allow that, Eggman!
I'll collect and protect all the
Chaos Emeralds!
Let's start by searching
in Mystic Ruins!

Windy Valley - Action &nbsp &nbsp &nbsp &nbsp
Description
Running on the wind is a feature of this level that has a tornado scene for Sonic to escape. You need to get the green stone by Tails' workshop to open this level in the Mystic Ruins.

Emblems
C - Find the chaos emerald
B - Finish level with at least 50 rings
A - Finish level in 3 minutes

Animals
Mole, Parrot, Peacock, Seal, and Swallow

Progress story:
I'm Sonic! Sonic the Hedgehog!
The battle for the Chaos Emeralds
has begun!!
Chaos... that awful monster!
I'll not allow you to grow stronger.
I found 1 Emerald in the Windy Valley,
so I am off to a good start!
I've searched every nook and cranny of
Mystic Ruins... so now I am off to
Station Square!

Item - Light Shoes
Before proceeding Sonic must collect this item.

Location: Sewers of Station Square. Go to the part of Station Square with an open manhole. Fall through and then walk through the sewers until there's a path you have to jump to reach. On that path you'll run into the shoes.
What It Does: Enables Sonic to use the light-speed dash.

Item - Crystal Ring
Can get after getting Light Speed Dash shoes (optional).
Location: Station Square Hotel. Go up the stairs. The first switch will show a path of rings and the second switch will open the door on the other side. Use the light-speed dash to get across and into the room with the Crystal Ring.
What It Does: Reduces the charging time for the light-speed dash.

Casinopolis - Action &nbsp &nbsp &nbsp &nbsp
Description
Pinball, whether it's NiGHTS or card, is the name of the game here. Collect 400 rings to be able to reach the chaos emerald that's in the vault. If you lose your ball in the pinball board three times and have less than 100 rings you get thrown down in the garbage chute, which is filled with both rings and dangerous swinging spike balls. You need to use the light speed dash to open the casino the first time.

Emblems
C - Find the chaos emerald
B - Finish level with at least 50 rings
A - Finish level within 5 minutes

Animals
Koala, Parrot, Peacock, Rabbit, and Swallow

Story:
Upon leaving Casinopolis Sonic and Tals are ambushed by Eggman and put to sleep with sleeping gas, while Eggman makes off with their newly-acquired Emerald.

Progress story:
I'm Sonic! Sonic the Hedgehog!
Just when I'd found another Chaos Emerald
in Casinopolis, suddenly Eggman
showed up!
He robbed me of the Emerald and
then disappeared.
He has 2 and I have 1. He may have the
advantage now, but I'll never give up!
I'll return to Mystic Ruins
to search once again.

Icecap - Action &nbsp &nbsp &nbsp &nbsp
Description
One of the levels on Angel Island; snowboarding, jumping from icicle to icicle, and avoiding being frozen or the many spikes are all part of this level. You need to go to the alley near the casino and the back entrance of the train station in Station Square to get the ice stone to open this level the first time.

Emblems
C - Find the chaos emerald
B - Finish level with at least 50 rings
A - Finish level within 4 minutes

Animals
Gorilla, Mole, Penguin, Sea Otter, and Seal

Progress story:
I'm Sonic! Sonic the Hedgehog!
I've found another Chaos Emerald in Icecap.
Now, I have 2!
Fantastic!
Now, where should I go next?

Story:
Sonic and Tails meet Knuckles at the Mystic Ruins, who demands to have the Emerald.

Boss - Knuckles the Echidna
Hit Knuckles 3 times to end this battle. Knuckles will attack more after each hit, including a glide attack after being hit twice.

Story:
Knuckles knocks the Emeralds off Sonic and Eggman picks them up band feeds them to Chaos, who has now transformed into Chaos 4.

Progress story:
I'm Sonic! Sonic the Hedgehog!
Knuckles appeared out of
nowhere and attacked me!
Why?? Why would he do that?
That Eggman must have tricked him again!
Eggman took the 2 Emeralds
I'd collected, and now Chaos has
probably transformed again
using their power!
OK, show me how strong you
think you are now! Come on, Chaos!

Boss - Chaos 4
Attack Chaos 4's head when it's stationary in the water. Repeat until he's down for the count. Avoid the attacks by continuously hopping from lilypad to lilypad. Takes 4 hits to beat.

Story:
Eggman escapes in his airship, the Egg Carrier. Sonic and Tails decide to pursue him on the Tornado.

Progress story:
I'm Sonic! Sonic the Hedgehog!
Eggman and Chaos escaped in
a huge flying fortress.
I can't believe this has happened...
But I won't let them get away!
C'mon Tails! Let's take the Tornado,
and follow them!
I'll catch up with you and
I'll crush you, Eggman!

Sky Chase Act 1 - Mini-Game &nbsp &nbsp &nbsp &nbsp
Description
Fly the Tornado and blast as much missiles and planes as you can.

Emblems
First one - Play the game in Adventure mode (either via Sonic's or Tails' game)
Second one - Beat the top score via Trial mode

Story:
Eggman's Egg Carrier attacks with a huge laser and breaks off the Tornado's wing. Sonic lands in the sand near the Station Square hotel pool and has been separated from Tails.

Progress story:
I'm Sonic! Sonic the Hedgehog!
Tails and I jumped into my plane,
and flew after Eggman.
But the Egg Carrier attacked us.
The Tornado was damaged
and we crash landed...
I landed in Station Square.
I think that's when I got seperated
from Tails. I'm sure he'll be OK
by himself, but maybe I should go
and find him anyway.

Story:
Sonic then meets Amy and the green Flicky she wants him to protect. Sonic tries to refuse to no avail and as they're walking around in Station Square Eggman's robot Zero appears and charges toward Amy and the bird.
Sonic wants to fight the robot, but Amy, upon seeing a promotion in Twinkle Park for couples, runs in before Sonic can react.

Progress story:
I'm Sonic! Sonic the Hedgehog!
Oh no, it's Amy!
Why did I have to run into her now?
Wherever I go, danger seems to follow.
She doesn't seem to care
about that, though.
She follows me anywhere I go.
So I have to protect her...
A bird? A bodyguard?
Well, now that I can handle, but...
Hmmm... I wonder if she is involved
in any trouble again??

Twinkle Park - Action &nbsp &nbsp &nbsp &nbsp
Description
Attacking bumper cars, bowling for rings, a roller coaster ride, and other amusement park fun await you in this level.

Emblems
C - Open the capsule
B - Finish level with at least 50 rings
A - Finish level within 3 minutes

Animals
Deer, Elephant, Kangaroo, Koala, and Rabbit

Story:
Sonic seems to have lost track of Amy and is suddenly worried she might have been captured by the robot.

Progress story:
I'm Sonic! Sonic the Hedgehog!
I can't believe I lost Amy...
Was she captured by the robot
that was following us?
I just knew Amy was going to
cause me trouble like this!
But I just can't ignore what's happened.
Amy, where did they take you??
Where should I start looking for her?

Speed Highway - Action &nbsp &nbsp &nbsp &nbsp
Description
Running the streets, the side of buildings, and taking a small helicopter ride all while avoiding enemies is what this level is all about.

Emblems
C - Open the capsule
B - Finish level with at least 50 rings
A - Finish level within 2 minutes and 30 seconds

Animals
Deer, Kangaroo, Koala, Rabbit, and Swallow

Story:
Sonic still hasn't found Amy and decides to take another look around Station Square.

Progress story:
I'm Sonic! Sonic the Hedgehog!
I raced all over the midnight highway,
but I couldn't find Amy anywhere.
Amy is not around here...
Where on earth are you, Amy!?
I suppose I should have a look around
Station Square again?

Story:
Suddenly Sonic spots Zero carrying a screaming Amy and the birdie. He takes the train to the Mystic Ruins in an attempt to follow them, but as soon as he catches up with them they are beamed up by the Egg Carrier, which Sonic now runs after.

Item - Ancient Light
Can get after Speed Highway (need to get into Red Mountain).
Location: On a boulder on Angel Island. Continue on the path that leads to Ice Cap (without going into the Ice Cap) and you'll end up near the entrance for Red Mountain. You should see the glowing light not too far away past the monkey guarding the entrance to Red Mountain.
What It Does: Allows Sonic to use the light-speed attack.

Progress story:
I'm Sonic! Sonic the Hedgehog!
Amy was taken away, so I went
down to Mystic Ruins.
And what I saw there was...
the Egg Carrier!
It flew off towards the mountains...
with Amy trapped inside!
Now the Tornado is damaged.
Oh, what should I do?
Well, I still have my super fast feet!
I'll chase after the Egg Carrier
and catch up with it
on the other side of this mountain!

Red Mountain - Action &nbsp &nbsp &nbsp &nbsp
Description
Another level on Angel Island, running around the mountain, not falling off into the nothingness (as Sonic can't fly or glide), and avoiding all the fire, lava, and heat related enemies are the challenges here.

Emblems
C - Chase the Egg Carrier
B - Finish level with at least 50 rings
A - Finish level within 3 minutes

Animals
Elephant, Gorilla, Lion, Mole, and Parrot

Story:
Sonic seems to have arrived too late as the Egg Carrier has just flown by the mountain and he is unable to reach it.
Just then Tails arrives in a new model of the Tornado and the two fly towards Eggman's airship.

Progress story:
I'm Sonic! Sonic the Hedgehog!
I chased after the Egg Carrier
to rescue Amy.
I climbed all the way to the top of
Red Mountain, but the ship was gone.
Then, I saw an airplane...
Piloted by... Tails! Wow!
It's his new airplane!
OK, Tails!
Let's hurry and catch up
to the Egg Carrier!

Sky Chase Act 2 - Mini-Game &nbsp &nbsp &nbsp &nbsp
Description
The new and improved Tornado takes on the Egg Carrier. Blast your way through the planes, missiles, and other defenses. At the end, you have to destroy the laser cannon that shot down the Tornado earlier in the game to win.

Emblems
First one - Play the game in Adventure mode (either via Sonic's or Tails' game)
Second one - Beat the top score via Trial mode

Story:
The Tornado crash lands due to lack of a landing gear while in attack mode, now Sonic and Tails have to find the way into the ship to rescue Amy.

Progress story:
I'm Sonic! Sonic the Hedgehog!
Tails made a new airplane, the Tornado 2!
It's really great!
...Except that when it transforms
it has no landing gear... Ahhh!
Anyway! We finally managed to board.
This ship is really huge.
It may take a while to find Amy...

Story:
Things get trickier when Eggman makes the ship transform into attack mode, which means the only way to get in is through Sky Deck.

Progress story:
I'm Sonic! Sonic the Hedgehog!
Eggman was waiting for us.
He knew that we would come here,
so he set a trap for us.
Now I have to cross Sky Deck to get
to Eggman, right?
No problem!
This'll be easy!
Amy, I'm on my way, so hang in there!

Sky Deck - Action &nbsp &nbsp &nbsp &nbsp
Description
Watch out for all kinds of surprises as you make your way through, especially at the part where the ground begins to fall right from under you. At the very end, destroy the massive cannon by firing a missile into it to end the level.

Emblems
C - Open the capsule
B - Finish level with at least 50 rings
A - Finish level within 5 minutes

Animals
Lion, Parrot, Peacock, Skunk, and Swallow

Story:
Sonic and Tails eventually reach Eggman, who has acquired yet another Chaos Emerald from the green Flickie that was following Amy around.
He sends E-102 Gamma to fight Sonic.

Boss - E-102 γ
Hit Gamma 3 times and the fight is over. After each hit, Gamma will attack a little more.

Story:
Amy prevents Sonic from finishing off the robot, insisting that it is her friend. Sonic tells Tails to escape with Amy, while he chases down Eggman.

Progress story:
I'm Sonic! Sonic the Hedgehog!
I finally found Amy!
But then Eggman called another robot.
Me, worried? No way!
'Cause I've never lost to Eggman!
I'm not sure why Amy wanted me to stop,
but she must have had her reasons.
Suddenly, the Egg Carrier began to
shake! Tails, you and Amy escape before
the ship crashes!!
I'll take care of Eggman!

Story:
Before being able to proceed Sonic must press a switch in the control room to make the ship retransform to its original form.

Progress story:
I'm Sonic! Sonic the Hedgehog!
Eggman escaped to the bow
of the Egg Carrier. After
I transform the ship back to its
original form, I'll chase him down!
Nobody can stop me.
Nobody!!
Eggman, you won't get away this time!

Story:
Sonic encounters Big the Cat, whose friend Froggy has been swallowed by Chaos 6.

Boss - Chaos 6
Destroy Eggman's ice bots and throw them into Chaos 6's mouth to cause it to freeze. Then attack Chaos 6. Repeat until Chaos 6 is down for the count. Watch out for his attempts to suck you into his mouth, his attacks with his tail, and his energy attacks that span the ground.
Defeated in 4 hits.

Story:
Sonic jumps off the crashing Egg Carrier and goes to the Temple at the centre of the jungle in Mystic Ruins.

Progress story:
I'm Sonic! Sonic the Hedgehog!
Chaos had 6 of the Chaos Emeralds,
but I still defeated him!
Eggman was trying to slip away
when his monster was defeated.
So I jumped off the deck to grab him,
but I just missed!
I woke up to find myself near
these strange ruins. Then, a mysterious
light appeared and led me into them...

Lost World - Action &nbsp &nbsp &nbsp &nbsp
Description
Ride a snake over water, and don't let yourself get run over by a boulder as those surprises and many others await in this ancient temple.

Emblems
C - Get to the center of the ruins
B - Finish level with at least 50 rings
A - Finish level within 4 minutes and 30 seconds

Animals
Elephant, Gorilla, Lion, Mole, and Penguin

Story:
At the centre of the ruins Sonic finds a huge mural and stops to contemplate it in awe. Suddenly he is transported to a burning altar in another place.

Progress story:
I'm Sonic! Sonic the Hedgehog!
There was this huge mural drawn on a wall
deep inside the ruins. It depicted a monster
on a rampage, destroying a town...
And before I realized it, I was in a
totally different place... surrounded by fire!
What is this place!?

Story:
Sonic sees many Chao lying motionless on the ground. A young Echidna girl named Tikal decides she must take action and runs up to the Master Emerald on the shrine.
Sonic is then warped back into the jungle and chases Eggman to his base.

Progress story:
I'm Sonic! Sonic the Hedgehog!
I had an unusual dream...
There was this girl, and
she was looking at me,
filled with sadness.
What did it mean??
Whoa, take it easy!
I have no idea!
I woke up just in time to see
Eggman fly by.
His base must be that way!
OK, I'm on my way to his base!

Final Egg - Action &nbsp &nbsp &nbsp &nbsp
Description
Eggman's base is filled with lasers, mallets, enemies, and other surprises.

Emblems
C - Get to the center of the base
B - Finish level with at least 50 rings
A - Finish level within 4 minutes and 30 seconds

Animals
Deer, Gorilla, Kangaroo, Mole, and Rabbit

Boss - Egg Viper
Avoid the laser fire (twice) after each of the early hits and don't fall off the platform during the fight. Do this fight quickly, especially after one platform is removed by the Egg Viper and you'll need to ride spinning disks to attack Eggman on the Egg Viper. At the end, it'll do a "suicide dive" in an attempt to kill you (which will cause you to have to do the fight all over again if it's successful). You need to have a few platforms left to survive the "suicide dive"--if you only have one platform left, you're dead.

Since Erika did such a fine job on Sonic's bosses, feel free to use my guide as a supplement for that. Hope you don't mind, Erika.

This is strictly a boss guide for Sonic's story.

Chaos 0

Hits: 3

This boss is relatively easy compared to the bosses to come. In order to score a hit on Chaos, you have to hit his glowing brain. At the start of the battle, you can easily score a hit just by using jumping on him.

After the first hit, Chaos will attack in two different ways. In his first attack, he will extend his arms and then start spinning. He will then spin around the arena, sweeping everything with his arms. In his second attack, one of his arms will started glowing. After a few seconds, he'll stab in whatever direction you're standing. You can attack at any time during these attacks, but it is safer to just avoid him and attack when he takes a rest.

After the second hit, Chaos goes on the attack again. Along with his previous attacks, he adds in another one. He will leap up and land on one of the poles surrounding the arena. From here, he will slash down at the ground in whatever direction you are. Generally, he'll jump to another pole and repeat the attack, but he will on occasion jump back down after the first attempt. One more hit and Chaos is finished.

Egg Hornet

Hits: 3

This is the first of two boss battles with Eggman. Eggman starts the party by firing a volley of missiles at you. These can be avoided by running to another section of the arena. After firing off the missiles, he'll fly to the opposite side of the arena and extend the two spikes on the front of the Hornet. Then, he'll spread the "wings" of the machine and dive into the ground. Don't let the supposed shield worry you. Once Eggman starts digging into the ground, you can attack him. Be quick, though, because he doesn't dig for very long.

Repeat this two more times and the Egg Hornet will be destroyed. Be aware that after each hit, Eggman will fire more missiles than before.

Chaos 4

Hits: 5

A word of warning for this battle: stay on the lilypads during this battle. If you happen to fall into the water, jump onto the nearest lilypad as soon as possible, because if you sit in the water for too long, you will die.

Unlike Chaos 0, this incarnation of Chaos has a tendency to chase you around the arena. Chaos 4 can only be damaged when he sticks his head out of the water. Chaos has several different attacks.

For his primary attack, he will swim across the arena periodically shooting spouts of water. If these spouts hit a lilypad, it will immediately sink. The lilypad will resurface a few seconds later. There is another variation to this attack. Sometimes Chaos will jump out of the water, causing several water spouts.

For his secondary attack, he will occasionally slash one of his arms around the arena.

Sometimes, he will generate a shockwave that sweeps across a section of the arena. Later in the battle, he will generate two shockwaves.

In his final attack, he will swim out into the middle of the arena and sit there for a few seconds. Then he will split himself into four balls of water that fly in whatever direction you are.

Chaos 6

Hits: 4

In this battle, Chaos can only be damaged when he is frozen. Like Chaos 4, this incarnation likes to chase you as well.

Eggman joins you for this battle, throwing insults and dropping what look like egg-shaped freezers. These are what you will use to freeze Chaos, but they first have to be disabled. If they are not disabled, they will start shooting out frozen air. If you happen to be standing under one of them when this happens, you will be frozen. Press the jump button a few times to defrost yourself. To disable them, simply jump and hit them. Now in order to freeze Chaos, you must manage to get Chaos to eat one of these things. You have two ways to do this. You can simply pick one up, walk over to Chaos, and throw it into his mouth, or you can stand behind one, and let Chaos suck one of them up. In this battle, Chaos has four attacks.

His first attack is a simple inhalation. He will face whatever direction you are and start to suck up everything in that direction up. During this attack, if you run in another direction, Chaos will follow. If you end up in his mouth, you will take damage.

For his second attack, he'll slash at you with his tail.

For his third attack, he will leap high into the air and come crashing down, causing a shockwave that sweeps the entire arena. As his damage increases, he'll cause multiple shockwaves.

For his final attack, he'll jump back to the middle of the arena, flip his tail over, and change it into a pendulum-shaped weapon. He'll then shoot out numerous spikes that cover the entire arena. If the spikes hit you, you won't take damage, but you will stop moving. Chaos will then sweep the pendulum across part of the spikes.

Egg Viper

Hits: 7

This is the last, and in my opinion, the hardest boss in Sonic's game. For this battle, you have two sets of platforms to stand on. To damage the Viper, you must hit the canopy.

Eggman kicks the battle off by shooting a series of lasers at you. He will do this up until the fifth hit. For the first hit, all you have to do is hit him when the canopy emerges from the Viper.

After the first hit, Eggman will shoot the lasers at you again. After that, he will fire a larger, single laser. Be sure to avoid the explosion caused by this. This time, Eggman will pop up and float to the middle of the arena. You must use the homing attack on each of the Viper's body sections to reach the canopy. These are the sections with the green lights on them. Be sure to wait until the Viper is fully extended or you will overshoot. Also, be careful not to go too fast on this part. If you try to do this too fast you will miss one of the sections and fall into the pit. If you fail to hit him in time, he will power up and shoot a large ball of energy at you. If you do succeed in hitting him, don't worry about falling. You will automatically land on the other set of platforms. Repeat this once more.

After the third hit, Eggman will appear at one end of the platform you are standing on and sweep the area with a series of lasers. Repeat the homing attack again.

After the fourth hit, Eggman will again appear at one end of the platform, but instead of shooting lasers, he'll fire off two spiked platforms. The goal here is to jump onto one of the platforms and ride it back to Eggman. When you reach him, jump and hit him. If the platform hits you, you will take damage and possibly fall off the platform.

After the fifth hit, Eggman is now apparently in a foul mood. He plows the Viper into one set of platforms, destroying them. Don't worry, it's not the set you're on.

For the last two hits, Eggman will fire the spiked platforms at you again. Try to get these last hits in as soon as you can, because this time when Eggman pops up, he destroys a section of the platform. You will need as much of the platform as you can get for Eggman's kamikaze attack.

After the final hit, the now mortally wounded Viper will fly around erratically. After a few seconds, Tikal appears to warn you that Eggman is up to something. Get ready to move at any time. Bound and determined not to go down without taking you with him, Eggman will slam the Viper onto the section of platform that you are standing on before falling into the pit. Run to another section of the platform to avoid following him. Be careful not to jump off the platform when dodging. Once Eggman is gone, relax and enjoy the light show.

This concludes the bosses for Sonic's story.