Contra 4 Cheats & Codes

Action Replay Codes US Version

Invisibility &Never Lose A Weapon
5202DCC8 E1D405BC
0202DCCC E3A00002
0212DCD0 E1C405BC
D2000000 00000000
5203412C E1D015BC
02034130 E3A01002
02034314 E1C015BC
D2000000 00000000
Note: When starting a level walk left, then right. You will be invisible for the entire level In The Base &Factory Note 2: Lose a life and you will be invisible. Works on all levels.

Upgrade Weapons

Enter Up, Up, Down, Down, Left, Right, Left, Right, B, A, Start. Note: This code can only be used once in each stage. If used more than once you will keep loosing a life.

10 Lives In Super Contra

Enter Right, Left, Down, Up, B, Y.

30 Lives In Original Contra

Enter Up, Up, Down, Down, Left, Right, Left, Right, Y, B.

Contra 4 Unlockables & Awards

Challenge Mode

In order to unlock challenge mode, beat the game once on easy. This new mode is hard, but it allows you to unlock bonus content.