http://www.youtube.com/watch?v=H1xEAhzv_xU Crazy, as long as you don't move your eyes the colour stays.
dooo itttt <object width="425" height="350"><param name="movie" value="http://www.youtube.com/v/vzSRVgF501M"></param><param name="wmode" value="transparent"></param><embed src="http://www.youtube.com/v/vzSRVgF501M" type="application/x-shockwave-flash" wmode="transparent" width="425" height="350"></embed></object>
If you haven't done shrooms, that's pretty close to what it's like. Visual wise. (not the video itself, what it does)
i feel roasted dude. that's like that i-doser shit. if you don't know what that is and you have a p2p file sharing program like limewire, just search i-doser in music files.
I haven't done shrooms or acid but it reminded me of salvia, I got the same effect off of it. Playing guitar hero 2 also gives you a similar thing. Optical illusions are sick.