Zombie Monkeys!
On the new Shangri-La map, watch out for the possessed monkeys! They steal your powerups and attempt to return them to their shrine. You can kill them to get the powerups back (the powerup in question rotates as it is being carried by the monkey), getting the Monkey See, Monkey Don't achievement.
We have more cheats and tips for this game here, Call of Duty: Black Ops - Annihilation cheats
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