While playing a game, press X to display the team menu. Next, hold Select, press Left Analog-stick Up and rotate it clockwise three times, then immediately rotate it anti-clockwise three times, while continuing to hold Select. Note: Your selected character will run around when this is done. While in the same menu, you should notice that a new icon has appeared under the log icon in the lower right hand corner of the screen. Highlight it and press X to display the cheat menu. The cheat menu allows all weapons, unlimited health, unlimited weapon energy, warp to the last level, and level selection.