Kirby's tumblin' again in this sequel to the highly innovative Game Boy Color title. Once again, you roll Kirby around obstactle-laden playfields by actually tipping the Game Boy Advance. (The cartridge has a built-in sensor that lets it do this.)
In addition, gamers can hook the game up to the GameCube version of Tilt 'n Tumble, allowing the game to alternate between the TV screen and your GBA's screen. Neat!