Kirby Tilt 'n' Tumble is a unique and charming twist on the usual Kirby formula. Instead of platforming, you guide Kirby, who's transformed into a pink ball, by tilting the Game Boy Color itself. The motion controls are surprisingly responsive, and the levels offer clever puzzles and challenges. While the concept is simple, the game's short length and occasional frustration with tilt controls hold it back from greatness - but it's still a fun little experiment worth checking out for Kirby fans.