Game Shark & Pro Action Replay Information

Game Shark and Pro Action Replay Cartridges

The Game Shark and Pro Action Replay are devices that allow custom cheat codes to be enabled in various console games. Originally developed by Datel Design and Development, Ltd. in the U.K., this technology is known as the Pro Action Replay in Europe, while distributed by InterAct Accessories as the Game Shark in North America.

System Availability

Game Shark and Pro Action Replay cartridges are available for the Sony PlayStation, Nintendo 64, and Sega Saturn video game systems. Each system requires their own version of the device. The Nintendo 64 and Sega Saturn versions plug into the cartridge port on the top of the console. The Sony PlayStation version plugs into the high-speed parallel port on the back of the console.


For the most part, Game Shark codes can be used in a Pro Action Replay and vice versa. However, this assumes that the same regional version of the game is being used on both systems. Since games are often modified when released in various world markets, most Pro Action Replay codes correspond to European releases, while Game Shark codes correspond to North American or Japanese releases. Thus, Pro Action Replay codes for an European version of a game can be used in any Game Shark or Pro Action Replay cartridge if that version of the game is being played in that machine. However, those same codes in that same machine will not work if the U.S. version of a game is in the console.


If you're familiar with the Game Genie or Action Replay cartridges used in the 8-bit or 16-bit video game systems, then you already understand the concept of the Game Shark and Pro Action Replay. As a game runs on a video game system, specific locations in the consoles RAM memory are used to hold important information, such as the number of lives remaining, shields, ammunition, current game level, etc. The Game Shark and Pro Action Replay device is able to override the values in those memory locations, allowing the game to be played with unlimited lives, always full shields, unlimited ammunition, etc.

This capability is a distinct advantage, especially in games that don't have built-in cheat codes. A large number of games can now be mastered by using internal codes from the cartridge, or by entering custom codes found in magazines, 1-900 tip lines, or web sites such as this.


Recent Nintendo 64 games, starting with 1080 Snowboarding, Banjo-Kazooie, Diddy Kong Racing, and Yoshi's Story are capable of blocking standard Game Shark codes. A blank screen will appear if these titles are used with an older Game Shark. A special "Keycode" feature has been added to Nintendo 64 Game Sharks that are at least version 1.08.

The Keycode menu can be accessed on such cartridges by pressing L + R at the main Game Shark menu. The menu allows preset codes or newly defined codes to be selected. Once the appropriate codes have been selected, the Nintendo 64 console must be powered off to allow the Game Shark to switch to the Keycode mode. When the system is turned back on, the game will start with the cheat features enabled. When the Nintendo 64 is powered off after game play, the Game Shark will revert to standard mode.

Note: Different versions of the Game Shark higher than version 1.8 exist. Each requires different Keycodes for each set of games.

InterAct Accessories will upgrade your older Game Shark to be Keycode compatible free of charge.

GS Button

The Nintendo 64 version of the Game Shark/Pro Action Replay has a small button located to the right of the LED display on the front of the cartridge. Termed a "GS button", its function is similar to a "Joker Command". The GS button allows a code to be activated momentarily, bypassing problems if it was always enabled. Click Here to see a picture of the GS button.

Game Shark Questions & Answers

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Q: What is a Game Shark?

A: A Game Shark is a small gaming device like the "Game Genie" that you put into either the Nintendo 64 or Sony PlayStation, that lets you put in special codes by enter numbers and letter into it.

Q: Can I use Game Shark codes without a Game Shark?

A: No, you must have a Game Shark to use any Game Shark Codes.

Q: Where can I buy a Game Shark?

A: You can click here and buy a Game Shark on-line for a very cheap price. You can also buy a Game Shark at most video game and electronic stores (i.e. Electronics Boutique, Best Buy, Toys R Us). These places can also probably answer any other questions or problems you might have with a Game Shark.

Q: How much does a Game Shark cost?

A: The price ranges from around $40.00 to $55.00, just depending on which store you buy it from.

Q: How do I know what version of the Game Shark I own?

A: When you first boot up your system with the Game Shark attached, a Game Shark title screen will appear. Look in the top right hand corner to determine what version you own (ex. 1.93).

Q: How do I enter new games and codes into my Game Shark?

A: There are three different sections of entering a new game, and new codes. By following the assigned keys at the bottom of the GameShark screen, you must first enter the Game Title (ex. GoldenEye 007). Next you enter the code description (ex. infinite health), and finally you enter the code (801882EA 0009). Once these three sections have been completed correctly, and you have saved the changes. Press Start and your on your way.

Q: Will the newer games, and the codes hacked for them, work on an older version of the Game Shark?

A: Usually, however when new games are released, new software is also released. The Game Shark needs to be upgraded occasionally to keep up with the newly released software. If at any point a code has locked up your Game Shark, or the version is outdated, you may want to have InterAct upgrade your Game Shark.

Q: How can I get my Game Shark upgraded?

A: InterAct (manufactures of the Game Shark) will upgrade your Game Shark, but it will cost you. Their policy of upgrading a Nintendo 64 Game Shark is as follow. If your version of your Game Shark is less than version 2.0, you can send in your existing Game Shark along with a check or money order made out to InterAct Accessories for $35.00. You will receive their new Game Shark Pro in return. If you have version 2.0 and above, you can upgrade your Game Shark to version 3.2 by sending in your original Game Shark with a check or money order made out to InterAct Accessories for $35.00. You will receive their new Game Shark Pro in return. If you have the Game Shark Pro (version 3.2 and higher), they offer free upgrades to the most current version (currently 3.2). The mailing address for the upgrade is:

Note: Please allow 3-4 weeks for delivery.

Q: Can a Game Shark hurt my video game system or video games?

A: (A Game Shark Representitive Answers): We back up our products 100%. A Game Shark cannot mess up the system or cart. It does not write to the system, code passes through the Game Shark to be altered. Software is read only memory (ROM). If there is a problem with a system, we replace the Interact equipment and refund the cost of repairs. This seldom happens - that is how we are able to offer it. We do not advertise this fact because of the extremely low incident rate.

Q: Can Game Shark codes hurt my Game Shark?

A: Yes, some codes are being released by third party hackers, and they are releasing untested codes that will definitely corrupt the Game Shark, so be alert.

Q: What should I do if my Game Shark is not working properly, who should I contact?

A: If your Game Shark is not working properly, double check and make sure all codes were entered correctly. Next, check the master code section of the Game Shark; be sure all master codes are correct. If you did all that and it is still not working, your Game Shark may be corrupt and you might have to send it in for reporgramming. What you should do in this case is contact InterAct Accessories, Inc. This is the company who makes and manufactures the Game Shark. Their address and phone number are:

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