What does PhD flopper do?

What does PhD flopper do? PhD Flopper is a Perk-A-Cola in Zombies. Each use costs 2000 Points. This Perk prevents any damage taken from falling great heights or explosives. If you dive from a high enough area, you will create a small explosion.

PhD Flopper is a Perk-A-Cola in Zombies. Each use costs 2000 Points. This Perk prevents any damage taken from falling great heights or explosives. If you dive from a high enough area, you will create a small explosion.
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