The Animal Tranquilizer is a hand weapon which fires micro-darts containing a fast acting neural toxin. The toxin is potent and incapacitating, but ultimately harmless. Since the toxin must reach the brain in order to take effect, the point of entry into the target's body is critical. Head shots are immediately effective, hits on other body parts will have a delayed action.
- The Tranquilizer's sound effects reused for the Injector in TimeSplitters: Future Perfect
- The Tranquilizer is completely silent and features infinite ammunition.