Yoshi Topsy-Turvy is a platformer video game developed by Artoon and published by Nintendo. It was released in 2004 for Game Boy Advance. The game features a built-in tilt sensor, which is used to manipulate the game's environment. The plot follows the protagonist Yoshi Urameshi, a teenage delinquent who dies in an accident and is brought back to life as a "Spirit Detective", a protector of the living world.