Silk Shot

Silk Shot is what is earned from defeating Morph Moth. Its normal fire is a shot of debris that shoots a short distance, and then falls and breaks into four pieces diagonally, almost like Dust Man's Dust Crusher. Charged up, it pulls in debris to make a bigger shot. They then explode into bigger pieces.

In addition, if used in certain areas, they'll pull in Energy Pellets instead of junk. In fact, it is recommended to use a certain room in Bubble Crab's stage to refill your Sub Tanks in between sections of the final stage.