First, go to the stage "Power Room". Keep going through the level until you come across the pink floors. Above from the pink floor should be a blue ceiling. Blow it up with the bombs that fly around the level. Beneath the pink floor is an enemy that changes elements. First it shoots fire. Make sure you are the electric element when doing this. After it shoots a fireball, it will shoot a thunderball. Quickly jump into the hole in the wall and get to the top. The thunderball will split, and follow you, and become glitched.