| Upgrade Weapons |
|---|
| Enter the Konami code in the pause menu to either upgrade your weapons fully or kill your character. It can only be used in Normal or Hard mode (easy gives you full upgrades automatically) |
| Code | Result |
| Up, Up, Down, Down, Left, Right Left, Right, B, A, Start | Upgrade weapons fully |
| 30 Lives in Original Contra |
|---|
| It's still the same Konami Code, except that A and B are replaced with B and Y, respectively. Input at the start screen of the original Contra game, then press start to begin the game with 30 lives. |
| Code | Result |
| Up, Up, Down, Down, Left, Right Left, Right, Y, B | 30 Lives in Contra |
| Get 10 men in Super C |
|---|
| At the title screen for Super C enter the following code |
| Code | Result |
| Right, Left, Down, Up, B, and then Y | 10 Extra Men |
| Sound Test In Super C |
|---|
| To access Sound Mode in the unlockable Super C, as the game's logo is fading in on the title screen hold Y+B and press Start. |
| Code | Result |
| To access Sound Mode in the unlockable Super C, as the game's logo is fading in on the title screen hold Y+B and press Start. | Sound Test In Super C |
| Challenge Mode Unlockables |
|---|
|
| Action | Result |
| Beat 8 challenges in Challenge Mode | Super C (NES) |
| Beat 4 challenges in Challenge Mode | Contra (NES) |
| Beat 12 challenges in Challenge Mode | Probotector |
| Beat 28 challenges in Challenge Mode | Sheena Etranzi |
| Beat 32 challenges in Challenge Mode | Contra 4 DS Promotional Comics |
| Beat 36 challenges in Challenge Mode | Jimbo & Sully |
| Beat 40 challenges in Challenge Mode | Extras Museum and Sound Gallory |
| Beat 16 challenges in challenge mode | Nobuya Nakazato Interview |
| Beat 20 challenges in challenge mode | Lucia (Character) |
| Beat 24 challenges in challenge mode | Contra III Comic |
| Challenge Mode |
|---|
| Complete the game on any difficulty to unlock Challenge Mode. This includes Easy. |
| Action | Result |
| Complete the game on any difficulty to unlock Challenge Mode. This includes Easy. | Challenge Mode |
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