What Is a GameShark?

GameShark: The Classic Cheat Hardware

A GameShark was a physical device (cartridge or disc) that let players input cheat codes to modify game behavior in real time. Popular late 1990s–early 2000s on PlayStation, Nintendo 64, Game Boy Color/Advance, and later PS2.

How It Worked

1. Connection: Plugged into the cartridge slot (N64, GBC/GBA) or loaded via boot disc (PS1/PS2).
2. Code entry: Manual hex input or pre-loaded code lists (thousands of titles).
3. Runtime patching: Intercepted RAM writes—e.g., freeze health at 99, set ammo to 255, unlock all levels.

Common Cheat Types

• Infinite lives / health / ammo
• Moon jump / walk through walls (no-clip)
• Unlock all characters, costumes, tracks
• Max money, stats, items
• Game-speed modifiers

Why It Mattered

• Democratized “god mode” for kids without programming skills.
• Enabled exploration of cut content, debug rooms, developer tools.
• Spawned a subculture of code-hunting, sharing via forums, magazines, GameShark.com.

Controversy & Legacy

• Multiplayer unfairness → bans, split communities.
• Devalued achievement for some players.
• Supplanted by: PC trainers (Cheat Engine), in-game unlockables, achievements/trophies, save editors, and mod menus.

GameShark is a relic of the pre-online era—part of gaming history, but obsolete today.