User blog comment:Emitewiki2/Nitrome Must Die- My Story/@comment-4628859-20111202220121

Those white ghost guys happen to be mister nibbles. I don't really know how to get them off but I've watched my brother and I think you have to tap the left and right buttons back and forth quickly and it will fall off. By the way my brother (Nobody) died several times on that level and he has actually completed the game. If my advice doesn't work ask my brother.