The Tranquilizer Gun is a Blue Class weapon in Manhunt 2. It appears in the levels Origins and Personality Clash and is used by Dr. Pickman and the Project Scientists. Executions are different in PS2 and Wii.
Danny shoots the hunter in his back side, causing him to fall face first on the ground. As he does, he put his hands on the ground to soften his fall. Danny then kicks the hunter's hands away and stomps on his head, killing him.