Sell your kidney, buy Audiosurf.
Save your lunch money, buy Audiosurf.
You could buy a custom pc with whats left, or 50...and audiosurf for all of them!
You'd only have to buy it once 
, that is unless you want to play it on all of them at the same time.
Quote pyramid building nicely 
It would be an insane version of double vision.
Yes, its a wonderful pyramid. keep it growing.
When you can play two versions of Double vision a the same time using hands/feet you're awesome. If you can play three you're obviously very popular with the ladies.
If you're playing three, I would think you're having an audiosurf dream =)
Maybe four if you can somehow utilise your earlobes?
Or about eight Ninja Monos on the go at once?
Maybe rig a motion sensor to your head too; when you tilt it from side to side, the ship moves accordingly.
Or have a motion sensor for each of your fingers and toes along with your head. Madness!
Don't forget blink sensors (maybe one for each eyelash?) and hair sensors...
Why stop there? Blood cell sensors! Nanobots in your blood controlling your every in-game move by monitoring blood flow!
C-C-C-C-C-COMBO BREAKER!
Oh no you don't.
Anyways, I don't condone organ donation of any kind for money.
2 different motion sensors polarized vertically and horizontally attached to your tongue. Double vision with just your tongue... OR... 2 ninja mono on Dragonforce "through the fire and flames"
And those 2 Ninja Mono Dragonforce songs are playing 1 second apart from each other.
It's looking pretty trippy.. +1 for everyone who played "double vision by foreigner" .. with double vision
...on two computers at the same time...
...each running two copies of Audiosurf...
[And I thought these were "black holes", not "pyramids", but whatever.]
