Level Select
At the Push "A" Button screen, press (on the D-Pad) L,L,R,R,D,D,R,R, then the A button to enable the level select cheat. This will not have any visible results, but when you then select Start Game, an orange/yellow screen will be presented allowing you to select a level to play.
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Afterburner Kills
You can use the afterburner to kill enemies instead of shooting them. Simply fly in front of an enemy and use the afterburner to incinerate it.
