Call of Duty: Black Ops Cheats :
Glitch - Zombies Unlimited Ammo Glitch
This is hard to do, and might take several tries, but it works. Here's the steps.
1 : Go outside on Kino Der Toten ( Anywhere )
2 : Now, get the last zombie of the round, ( Don't kill him ) and drag him back into the house place
3 : Now drag him to the Mystery Box ( Shoot his leg like 2 or 3 times )
4 : Buy the mystery box AS the zombie swipes you.
5 : Run away
6 : Come back when your healed and the gun of the mystery box is there
7 : Take the gun, and TA DA! You have unlimited ammo ONLY on the gun you get in the mystery box
Hope this helped :)
Btw I got to round 35 cause I got unlimited ammo on ray gun >:D!
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