The Fish Finder is a bass sniffer supposedly used to find fish. However, it actually detects people. Red "fishes" are people who are attacking you. Yellow "fishes" indicate people alerted of your actions. White "fishes" are normal, unaffected people. The Fish Finder has three expansions to upgrade the experience:
- The Largemouth Plug-in: detects law enforcement organizations.
- The Piranha Plug-in: detects armed and potentially dangerous NPCs.
- The Chompy Game Cartridge: starts a mini-game featuring a large fish named "Chompy".