Contra Cheat Code Game Genie

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You can add Game Genie & Action Replay cheat codes for many games and different consoles (SNES, NES, N64, etc.). This tutorial is the same and works for both the SNES Classic Mini and NES Classic Mini. How-to Add Cheats to the SNES Classic with RetroArch. Great place to get cheats, cheat codes, tricks, and secrets for PC.

Operation C

Also known as: Contra (JP), Probotector (EU)
Developer: Konami
Publishers: Konami (JP), Ultra Games (US), Palcom Software (EU)
Platform: Game Boy
Released in JP: January 8, 1991
Released in US: February 1991
Released in EU: May 21, 1992

This game has a hidden sound test.
This game has a hidden level select.
This game has regional differences.
This game has revisional differences.

Operation C is a Contra game on the Game Boy with the soundtrack of Contra and gameplay of Super C. Seriously, Konami...you didn't have to.

  • 5Regional Differences

Sound Test

Contra Cheat Code Game Genie

Press Up, Down, Left, Right, Start at the title screen. A plays the selected track, B stops, and Up/Down change tracks unless one is playing.

Level Select

Press Up, Up, Down, Down, Left, Right, Left, Right, B, A, B, A, Start at the title screen.

This only requires a code in the US version, and original European version.

Contra Cheat Codes Nes Game Genie

It appears normally in both Japanese versions, and the European Konami GB Collection; many very early Konami Game Boy games (such as this game, Nemesis, and TMNT: Fall of the Foot Clan) featured a level select by default with some sort of punishment for playing the game to completion by starting on a later level, possibly owing to low battery life.

However, the level select cheat only allow players to access stages 1-4, not 5. Using patch codes can change this, which shows that it is present in the game’s code, but likely dummied out.

Also the Japanese version use this cheat to add an extra lives instead. The US and the European version uses the third kind of code for this.

Debug Leftovers

Use the Game Genie code 00A-EBF-C4D to re-enable the simple sprite viewer. During the game, press Start, then use A/B to replace the player's sprite with the one of the assigned sprite resources. Some of them are broken, there is no validity test for it.

Version Differences

The original European version has typical Probotector sprite swaps of humans to robots. This was reverted for Konami GB Collection, despite keeping the Probotector name.

As with all Konami GB Collection games, the Japanese update added Super Game Boy support, which was replaced by Game Boy Color support in Europe.

US/JPEU GBJP SGBEU GBC

Regional Differences

To do:
Probotector graphic comparisons.

9 Lives Code

The codes to start with 9 lives in each version of the game are different, and are as follows:

  • US/Europe: Up, Up, Up, Up, Down, Down, Down, Down, Left, Left, Left, Left, Start
  • Japan: Up, Up, Down, Down, Left, Right, Left, Right, B, A, B, A, Start (the US/Europe Level Select code; see above).
(Source: GameFAQs)
The Contra series
ArcadeSuper Contra
NESContra • Super C
DOSContra
Game BoyOperation C • Contra: The Alien Wars
SNESContra III: The Alien Wars
GenesisContra: Hard Corps
PlayStationContra: Legacy of War • C: The Contra Adventure
Sega SaturnContra: Legacy of War
WindowsKonami Collector's Series: Castlevania & Contra
Nintendo DSContra 4 (Prototype)
WiiContra ReBirth
Retrieved from 'https://tcrf.net/index.php?title=Operation_C&oldid=634378'
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What is a Game Genie?

I bet you haven't heard the name 'Game Genie' in a long time, or maybe you haven't heard that name at all. Game Genie is very much like today's cheating device Game Shark, just insert it into the console, as well as inserting the game you wanted to cheat on, then put in a code in order to preform a specific cheat.
Problems Using the Game Genie

During the time Game Genie was around it caused a few problems on some consoles. Even today you can still buy them off Ebay, or other places that sell retro gaming stuff, just be aware that it may cause you some problems.
Some GameGenies that are meant for a specific consoles may have their own specific problems, such as the Game Genie for SNES, the only issue I can see right now is that it seems to have complications with games that have a performance enhancing chip equipped to it. Such as the Super FX or the S-DD1 chip. You may know a few performance enhancing chip games like Star Fox or Super Mario World 2: Yoshi's Island. Therefore, due to this chip problem, you can not cheat on every Super Nintendo game out there.
Some people have said that they tried it on their friends consoles and it worked fine, but when they tried it on their Super Nintendo it didn't work. Wikipedia's is where I found out about the performance enhancing chip problem. Some other players had a problem about not be able to play a specific game with the Game Genie, however, it wasn't a performance enhancing chip game that is being used on the Game Genie. The solution might be that the Game Genie needs a Master Code in order to apply any cheats for that particular game. Where to find the Master Code? It differs between each game, and which kind of codes being entered, I usually spot these Masters Codes on the top of the list of a particular game when I search for Game Genie codes.

Cheat Code For Contra 3

There are may be more problems besides the ones above, you can usually find solutions using search engines and Video Game Forums that discuss retro gaming.
How to use the Game Genie

Game Genie Codes For Nintendo


Even though Game Genie is so last decade, you may never used a Game Genie before, or forgotten how to use one. It is very simple to use, the only thing you have to do is to pick (even mix) some codes you are interested in using. The only hold up is that you can only enter 5 codes at a time.
Note:
Some effects may require more than one code in order to work.

Contra 3 Cheat Code Game Genie

Also take note that if the game doesn't have a performance enhancing chip, and still doesn't work in the Game Genie, it might require a Master Code, this is one of may reasons why some effects may require more than one code.

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