G:Contra Force

C:Infinite Lives (Burns)|00B3:99|Rune|
C:Infinite Lives (Beans)|00B6:99|Rune|
C:Infinite Lives (Iron)|00B5:99|Rune|
C:Infinite Lives (Smith)|00B4:99|Rune|
C:Character Modifier P1|00B1:XX|Rune|00 - Burns<br>01 - Smith<br>02 - Iron<br>03 - Beans
C:Invincibility P1|07C8:00|Rune & Viper187|Note: You'll bounce if you get hit, but you won't go flying off of the screen.
C:Float Jump|07B4:00<br>07AA:00|Rune|This code will allow you to move through objects after you've jumped. You can move around and fight in mid-air, and not have to worry about platform jumps ever again! If you like, you can still fight normally if you land on the ground and don't jump.
C:Level Modifier|0075:XX|Rune|00 - Level 1: Neo City Docks - Warehouses<br>00 - Level 2: Neo City Docks - Harbor<br>02 - Level 3: Mati Building<br>03 - Level 4: Aerial Convoy<br>04 - Level 5: Contra Headquarters