Enter the following codes at the title screen:

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