The problem with creating a game in 96KB (what they do is use equations and dynamically generated code to make up the 3D Scenes and music) is that you're basically restricting it to a very specific and small audience. Not only does it require creap-of-the-crop hardware, but even on such hardware, minor differences in drivers or video card can be a catastrophe for such a game. So yes it's quite possible, but not very practical... this isn't to say that games which come on 2 DVDs (UT 2004) are any better...

Best regards,
Alex Ionescu
http://www.relsoft.net