Scrambled Penguins

From Glitches

From the game Mega Man 3 for the NES.

In Gemini Man's stage, after you pass the first section, you'll come to a screen where Proto Man beams down, destroys a plug in the middle of the floor, then leaves. Right before you enter this screen, super jump into it and if you timed it right, you'll go right through the plug! When Proto Man's whistle is done playing, there will be no stage music, and the graphics for the large Penguin robots with the cranks on their heads will be all scrambled.

Taken with permission from Flying Omelette.