A Cactus McCoy Imposter is an enemy disguised as Cactus McCoy. They appear in Cactus McCoy 2. All three are required to be defeated for the challenge Cactus Decoy in the Dustbin Road area. The only weapon they wield is a Cactus.
Later, thirteen more appear in Whiplash Rapids as part of the Rumble in the Jungle challenge. These ones can wield a Cactus, Fly Trap, Thorn Bomb, or iron crate. They also wear different clothing.