| Code | Effect
|
|---|
| Press I, II, Right, Left, Right, Left, Down, Down, Up, and Up on controller three. Then, under the options menu, select ''Vmode' | Arcade Mode
|
| Press Up, Right, Down, Left, Down, Right, I, II, and Left on controller four | Level Select
|
| Press Up, Up, Down, Down, Left, Right, Left, Right, II, and I. You may select up to 9 credits in the options menu | Nine Credits
|
| Press Up, I, Right, II, Down, I, Left, II, Up, and Select on controller five | See Animation Sequences
|
| Press Up, Up, Down, Down, Right, Left, Right, Left, I, II on controller two. You may select up to ten ships in the options menu | Ten Ships
|