Katamari Damacy Mobile (塊魂モバイル, Katamari Damashii Mobairu) was a video game developed by Namco Bandai Games for the Mitsubishi P904i[1] series of mobile phones for NTT Docomo.
This version of the game used a unique method of control, by making use of a new software technology called GestureTek EyeMobile to make phones capable of detecting tilt and vibration via the built in camera on the P904i.
The players moved the katamari ball forward, backwards, left and right by tilting the phone.
[2] Docomo's 904i series, however, calculates tilt based on digital camera images, unlike the Wii and PS3 controllers which use different motion sensing technologies.
[3] An IGN review of EyeMobile-compatible 3D Tilt-a-World warns that this type of motion control fails if the player's movements "are too sudden for the game to translate" and that the setup requires "a well-lit area so the camera can get a good 'fix' on an image".