This happened to me 2 times IIRC. I don't know what causes it. I can't remember doing anything special. Think I exited a game one time while I was stuck at "Waiting for other players", which itself is a known glitch.
But I like it! Wish I could replicate it each time, and play with these colors in game. Has anyone else had this? --- 0=Rei. Pronounced Rei-six. Born New England. Lived in Japan. Citizen of Earth. http://i49.tinypic.com/69gf9z.jpg
I had that happen once, it was in the demo I believe. Haven't had it happen since and forgot all about it until just now. No idea what would cause it though. --- Honestly, I think I'd rather stick my dick in a blender. - Raylan Givens.
I had a similar problem with texture on my PC a while ago and it was because some of the RAM on the video card were failing. I end up changing video card. I hope that is not your problem with the XB360.