Yoshi's Universal Gravitation (released in North America as Yoshi Topsy-Turvy) is a 2004 platform game for the Game Boy Advance that was developed by Artoon and published by Nintendo. It features a built-in tilt sensor, which is used to manipulate the game's environment. By tilting the Game Boy Advance left or right, the player can tilt the game area, causing enemies and other objects to slide as the direction of gravity changes. This gameplay mechanic is used to solve puzzles or aid Yoshi in completing levels. The game received mixed reviews.
- Japan: December 9, 2004
- Europe and Australia: April 22, 2005
- United States: June 13, 2005