Maximum plasm

Playstation 2: Hold R1 and L1. Press square, triangle, square, triangle.

Xbox: Hold left and right triggers. Press XYXY.

Skip levels

Playstation 2: In the Level Select screen hold R1 and L1. Press triangle 4 times. Hold the right trigger to skip a level or group of levels.

Xbox: Hold the triggers. Press X four times. Hold the right trigger to skip a level or group of levels.