Well, I just came across Audiosurf accidentally while searching for M.U.G.E.N. characters on the internet, and I'm so glad I came across it.
Now, Audiosurf is a $10 indie-developed "surf" game distributed by Valve and Steam. The game basically allows you to "surf" on any songs (regardless of audio format) using a spacecraft and collecting colors (on Mono anyways). What I found cool is how this simplistic gameplay happens:
On those fast-paced songs, you have a fast moving track and more vibrant colors than the slow-paced songs, which go slowers and have more temperate colors.
The point is, Audiosurf is a fun game to play while sober. It's even a greater game when you're playing "Yellow Submarine" or "Purple Haze" while you're high!!!