Board Thread:Questions and Answers/@comment-35325345-20180522095025/@comment-35353971-20180524120546

RNG=Random Number Generater

It basically means a set chance, and usually you need to rely on luck to beat these stages

Crazed Titan has a 15% chance to create a Level 7 shockwave, and when he does, it is devastating.

You need to rely heavily on Zombie Killers to even stand a chance against Zyclone.

Both very luck-based.