From IGNPocket:
Starting July 27th and going all the way through to September 8th, Sega will be popping by Tokyo-based department stores to give gamers a taste of upcoming games such as Super Monkey Ball 2, Beach Spikers, and Phantasy Star Online, giving gamers photo ops with AiAi the monkey, Sonic and Shadow the Hedgehogs, and offering the opportunity to score goodies like Ai Ai and Chao clothing clips.
For those that bring their Game Boy Advances along for the ride, they’ll be able to plug into the Sega Joycarry machines and dowload free versions of Puyo Pop and Chu Chu Rocket to play to their heart’s content…or until their batteries run out or they hit the power switch. These games are scaled-back versions of the games that can be purchased for the GBA system, that remain resident in memory until you turn off the system.
Japanese gamers will also be able to download a Chao Mini Garden and a super special Chao creature to their GBA systems, and upload it and save it to their Sonic Advance GameCube game…you won’t be able to get this Chao creature anywhere else…or so says Sega, anyway.
Though this store event is only in Japan, Sega will offer a similar opportunity to download free GBA games when Phantasy Star Online goes live for the GameCube later this year. As announced at E3, players will be able to hook up their GBA systems to their GameCube and download GBA demos, like Puyo Pop, Chu Chu Rocket and even a GBA version of Nights into Dreams off the PSO server.
— Craig Harris
Source: IGN Pocket