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Completion Bonuses

Successfully complete the game on the normal difficulty setting with at least a ''B'' rank to unlock the ''Theater'' option, ''Database'' option, and level 5 in training mode. Successfully complete the game with an ''A'' rank to view an alternate ending sequence and unlock level 6 in training mode.

Various Cheats

To unlock the following features, you will need to beat the game in these according ranks:

Extras

Gallery - "A".
Database - "B".
Theater - "B".
The following are theater movies:

Satellite - "C".
Return - "B".
Triumphant Return - "A".
Konami Movie - "S".

Stages:

Level 6 - Complete stage 5 with "A".
Level 7 - Complete stage 6 with "A".

30 Lives

Plug in the second controller (has to be a Dual Shock 2) and enter UP, UP, DOWN, DOWN, L1, R1, L2, R2, L3, R3 a the title screen.

Get 99 Credits

At the main menu, press UP, UP, DOWN, DOWN, LEFT, RIGHT, LEFT, RIGHT, CIRCLE, SQUARE, SELECT. This will give you 99 credits with which to play a Two Player game.

Get 30 Lives

Use Controller 2 and enter UP, UP, DOWN, DOWN, L1, R1, L2, R2, L3, R3 at the main menu (the title screen) and get 30 Lives instead of three. You will need an Analog Controller for this code to be performed.