The Repulsor, when used, will send a wave of force in all directions of the player in about a one meter radius, killing and repelling any zombies in the blast zone. This can be useful for escaping from a small or cramped room in case of a player being swarmed. Given the fact that it does not hurt any surrounding players, it can be used to clear out a large group of zombies to revive another player.
At the beginning of each round, the player will be granted one Repulsor if the player does not already possess the maximum amount, and will be completely refilled with the Full Reload power up. It will fill the tactical grenade slot and will be replaced by other tactical grenades if acquired.
The Repulsor returns in Call of Duty: Infinite Warfare in Zombies mode, and retains the same functionality it had in Exo Zombies. However, it can no longer be refilled with the Max Ammo powerup and instead must be refilled manually.
In Spaceland, the Repulsor randomly spawns at the ticket booths around the map each match, costing 50 tickets. In Rave in the Redwoods, the Repulsor can be obtained via the challenge post at the docks, which requires players to rebuild 45 window barriers.