Fool-Aid

Fool-Aid is a cancelled perk that was suppost to appear in the DLC Apocalypse for Call of Duty: Black Ops. This perk would allow you to be invisible to a small group of Zombies. It would cost 2500 points.

Trivia

 * It's name is a pun on Kool-Aid.
 * It is currently unknown why it was scrapped. This Perk-a-Cola might make an appearance in future maps.