Enter these cheat codes during gameplay for the named effects.
 

Effect                                                         Code

Alter GL Counter                                        Start, then Left + B + Select, then Right + A + Select, then Up + Select, then A/B to alter counter.

Instant Game Over                                     Up + A + Start.

Win "Unlock Your Universe" Levels           Left + B + Select, then Right + A + Start, then A + B + Start.