The program is donation-shareware. Donate what you think it is worth and you get the full version.
- Finally updated after almost 4 years! Updated default behavior for many new models. Modern computers have become so fast that the game became unplayable on them. This updates aims to fix that. Please send a feedback email if the game is too slow or fast on your machine or if the tilting feels backward. Please include which machine you've got.
- Mac OS X 10.3.8 or later
- MacBook, MacBook Pro, or Powerbook, iBook with sudden motion sensor (most models since 2005)