Kirby Tilt 'n' Tumble (JP) is a video game for the Game Boy Color that stars Kirby. It is noted as being the first tilt sensitive handheld video game, that was later used in Game Boy Advance games WarioWare Twisted and Yoshi Topsy Turvy and was supposed to be used in the cancelled 2001 version of Diddy Kong Pilot.
The game starts out with Kirby resting peacefully on a cloud. Soon, a Waddle Dee walks by, thus awakening Kirby. He sees that the Waddle Dee is carrying a package. After that, King Dedede walks by, also carrying a package. Wondering what they are up to, he follows them, and soon finds out that they have stolen his stars, and so he plans to get them back.
The point of the game is to guide Kirby from the start of the level to the end of it by tilting the Game Boy (color, advance, sp, or player) in the direction that you want the protagonist to go in. If you want to send Kirby soaring in the air, then you must jerk the Game Boy in any direction.
Development of Kirby Tilt N Tumble began in April of 1999. The original goal was to have it done within half a year, though the new concept and difficulties in creating it prolonged the development of the game. The entire team at R&D2 were very excited about the game, and according to director Toshiaki Suzuki after they revealed the idea to everyone, they all fell in love with the idea.
Suzuki was extremely nervous because he was relatively new to directing video games. He had previously directed Super Mario Bros. Deluxe, though that was his only other game as director. He said that even in Super Mario Bros. Deluxe, he didn't have much pressure while creating the game since it was simply a remake with added features such as the Yoshi egg mode and a few extra minigames.
- Though not suggested, the player can control the game using the Game Boy Player accessory, though it will be quite a challenge doing so. The same can be said about all Game Boy Color/Advance games that use motion sensitivity to play.
- The game was planned to have a sequel on the Nintendo GameCube, but was soon canceled.