The Gameshelf

You may have known (as I did) that Space Giraffe's eye-bending visuals resemble Neon, the Xbox 360's built-in music visualizer, because they come from the same creator. But perhaps you did not know (as I didn't until just now) that Neon is meant to be a fully interactive experience, whose manual can teach you how to use up to four Xbox controllers to influence the on-screen animation, with each one modifying a different attribute, including camera position, tunnel effects, and "boingy".