Pangea Software has released a beta version of its Go-Kart-racing game, Cro-Mag Rally, for Mac OS X.

Version 2.0b1 is available for download from In the game, cavemen and women negotiate a series of wacky racing circuits. The Mac-exclusive game is bundled with new iMacs and Power G4 Cubes.

Pangea Software boss, Brian Greenstone said: "We wanted to release the beta now because people were impatient to have a fully OS X compatible version."