Bullet” . Erwin Coumans. 2009-01-05 . http://www.bulletphysics.com/Bullet/phpBB3/viewtopic.php?p=11971#p11971 . Retrieved on 2009-01-05 . “There are some AAA games released by Sony Computer Entertainment , Disney and Rockstar and others. [...] We are allowed to mention that some parts of Bullet have been co-developed and optimized with Rockstar and merged into their Rage