GameShark
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GameShark is a cheating device used to alter the internal data of many video games. It is well-known for its use in the Pokémon series, as it is one of the ways to easily obtain legendary Pokémon or Pokémon only available through an event, and many rare items, such as Master Balls, Rare Candies, and vitamins.
Use of a GameShark can sometimes cause unwanted corruption of a save file. This is especially likely if the game is not inserted correctly into the slot or if it is bumped while playing.
Codes
In Generations I and II
A GameShark code is made up of three parts. The first part is the code type, which is commonly represented as 01. The second is the quality digits, which are the digits that will go into that space in memory. This is usually represented by XX, as these numbers can be modified at any time to change what will be received. All values are in hexadecimal code, instead of decimal (for example, the number 88 is represented by 58, or 5816 in mathematics). The third and final part is the address in memory, represented in Little Endian notation. This means that if the address C000 is to be modified, the end of the code would need to be 00C0. The code 010100C0 would tell the GameShark that the code type is 1, and that the value 01 will be put into the address C000.
Useful Gameshark Codes (for Red/Blue)
- 0010138CD Commonly known as "Walk Through Walls", allows the player to walk through anything (walking into places that are "out of bounds" will freeze the game)
- 01--D8CF Allows the player to encounter the Pokémon of their choice by walking in tall grass (to use, replace the -- with the hex identifier of the desired Pokémon)
- 01--7CCF Allows the player to buy the item of their choice from the Pokémart (replace the -- with the hex identifier of the desired item)
- 010157D0 Allows the player to capture a Pokémon during a trainer battle (to use, only activate this code after the desired Pokémon is sent out, and turn it off right away after capture)
Consequences
Sometimes the game will give the player a bad egg, take away key items, freeze the game, or simply erase the savefile. In other situations no consequences should occur.
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