Level select
Use the above links or scroll down see all to the Game Boy cheats we have available for Contra: Alien Wars. CheatCodes.com has been the world's #1 source for game. For Operation C on the Game Boy, GameFAQs has 3 cheat codes and secrets. Operation C – Cheats Game Boy. Franchise: Contra; Sign Up or Log In.
At the title screen, press Left, Up, Right, Square(2), Triangle(2), Down. If you entered the code correctly, you will hear the sound of a tone.
Infinite livesAt the title screen, press Up, Right, Square, Triangle, Right, Left, Square, Triangle. If you entered the code correctly, you will hear the sound of a tone.
Infinite Super bombsAt the title screen, press Square(2), Right, Down(2), Left, Square, Triangle. If you entered the code correctly, you will hear the sound of a tone.
Machine gunAt the title screen, press Right(2), Square, Triangle, Right, Left, Down(2). If you entered the code correctly, you will hear the sound of a tone. -From: Olikong@aol.com
View FMV sequencesAt the title screen, press Triangle(2), Down, Square, Up(2), Left, Triangle. If you entered the code correctly, you will hear the sound of a tone. -From: Olikong@aol.com
Infinite Lives | D00EB518 0005 800EB518 0006 |
Side Scroll Levels | |
Invincible | 80118AD4 0055 |
Infinite Smart Bombs | 8008F104 0009 |
Moon Jump | 800CC6FC 5080 |
3D and Overhead Levels | |
Invincible | 800B8100 0025 |
Infinite Smart Bombs on Pick-Up | D00EB51A 0001 800EB51A 0002 |
Moon Jump | D00EBF38 0040 800B80B4 B000 |
Note: Do not use the side scroll and 3D/Overhead codes together.
If you're like me, there are some games I could just never win as a kid. This guide will finally allow you to win! (albeit with a much lesser sense of satisfaction)
Download Cheats
As a preface cheats only work through libretro/retroarch so take note of the emulators you are using.
You first need to open the RGUI. There are two ways of accessing the RGUI:
- In the RetroPie menu of EmulationStation select Retroarchor
- Hotkey combinationHotkey+X to open the RGUI from within a game
If you haven't done so already, you'll need to enable the advanced settings by navigating to Settings >> User Interface >> Show Advanced Settings, then enabling the Online Updater in View >> Show Online Updater
Next, navigate to Online Updater >> Update Cheats
this will download a set of preconfigured cheat files for many games into /opt/retropie/configs/all/retroarch/cheats
Enable Cheats
Now you can launch the game you want to finally win:
Open the RGUI with Hotkey combinationHotkey+X
Choose Quick Menu >> Cheats >> Load Cheat File
Navigate to your game title and select it
Then navigate to the cheat you want to enable and press left or right to toggle it on/off
Select Apply Cheat Changes
Then press B to go out of the cheat menu and resume your game.
Your cheats should now be enabled
Create Cheat Files
You can create .cht files in /opt/retropie/configs/all/retroarch/cheats/<system>/<rom_name>.cht
The following is a reference chart for the types of cheat codes for each system:
Console | Cheat type | Example code |
---|---|---|
Famicom / NES | Action Replay | 02A2:01 |
Famicom / NES | Game Genie | APEETPEY |
Game Boy | Game Genie | FA1-B9C-4C1 |
Game Boy (Color) | GameShark | 0101CEC1 |
Game Boy Advance | GameShark v3 | CD93194F 089CE0B4 |
Game Boy Advance | GameShark v1/v2 | A62B1D67 EB2D |
Game Gear | Action Replay | 00D3-C280 |
Mega Drive / Genesis | Action Replay | FFFE21:0032 |
Mega Drive / Genesis | Game Genie | NN8A-AADN |
N64 | GameShark | 8033B177 0015 |
NDS | Action Replay | 22085A50 00000001 |
Sega Master System | Action Replay | 00C0-2502 |
Super Famicom / SNES | Action Replay | 7E1490:FF |
Super Famicom / SNES | Game Genie | 14B4-6F07 |
Cheat Code Example
Filename: Addams Family, The - Pugsley's Scavenger Hunt (USA, Europe) (Game Genie).cht
Multiline Cheat Codes
Contra Video Game
The following is an example for a PSX game
Filename: Resident Evil 2.cht
Mame Cheats
Contra Game Boy Cheats Online
Mame has its own configurations for cheats. You can see a guide HERE