WarioWare: Twisted! - Gyro Sensor

Gyro Sensor

The WarioWare: Twisted! cartridge has a built-in gyro sensor and rumble feature (for feedback during rotation). Most of the microgames are played by rotating the entire handheld device. The gyro sensor uses a piezoelectric gyroscope developed by NEC to detect angular movement. The gyroscopic sensor does not contain mercury, notwithstanding a persistent rumour that mercury in the sensor resulted in the game's being banned under European environmental regulations.

Because the game automatically calibrates the gyro sensor when the game is turned on (and after every "micro-game"), it works with both top-loading slots (like the Game Boy Advance) and bottom-loading slots (like all other models after the original GBA: Game Boy Advance SP, Nintendo DS, Game Boy Micro, and Nintendo DS Lite). The manual states that Twisted! is not compatible with the Game Boy Player; although the game loads as normal, players would have to carry and tilt the connected GameCube console and use its controller for button presses, thus it is simply not practical.