The Earth Protection Force (or "EPF" for short) is a US government organization whose job is to protect Earth from aliens. In the game Teenage Mutant Ninja Turtles 3: Mutant Nightmare, Master Splinter is been kidnapped by agents of the Earth Protection Force, under the command of Agent Bishop.

EPF Troops can attack the Turtles with either laser blasters or with martial arts-like skills (sometimes throwing grenades), and come in standard, purple, and red versions.

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