Space Tripper is a great looking, fast paced and very difficult space shooter. The layout of the levels is simple, you have two guns, each upgradable, you have fast, smart enemies and not much time. The graphics of this little game are absolutely amazing, the camera movement is very unique and cool. Just for the optics this game is fun, although you might need some prtactive before you actually reach any higher levels ;) The game is available for Mac OSX, Linux as well as Windows! OpenGL accelerated.