View credits
Enter CREDITS as a name.
View vortex sequence
Enter VORTEX as a name. Hold the reset button. A sequence showing all robots being sucked into a vortex will be displayed after several seconds. Release the reset button to end the display.
Bonus music
Enter G[Alien head]MEBOY as a name. Note: press L + C-Right + C-Down to enter the special character in the name. Enter the audio screen to access nine additional songs.
Lines mini-game
Enter LINES as a name. The object of the game is to remove an area large enough to released the trapped character. Line up three pieces in a horizontal or vertical line to remove them.
Level select
Enter [Saturn][Spaceship][Rocket][Heart][Skull] as a name. Note: press L + C-Right + C-Down to enter the special characters in the name. Any level in any game mode may be accessed.
Secret Characters
Push L, C right, C down.
Codes
Key these characters in at the New Name entry screen.