Option  Skip to next stage
 Right  Speed up enemies/background graphics
  Left  Slow down   "     "
     A  Speed up foreground graphics
     B  Slow down   "     "
     C  Fire special weapon without depleting inventory
     1  Power up gun
     2  Cycle through bomb powerups
     3  Mark other moons as completed
     4  Toggle invincibility
     0  Cycle through sound effects
     *  Play sound effect