Board Thread:R2D - Suggestions/@comment-26313868-20150521020411

Basically a very slim chance (1/100) where if you spawn as a regular zombie, you will get one of your stats tripled (health, speed, size, jump height, damage, attack range [longer arms]). It would be extremely rare or cost a lot to get this. This includes a bad stat increase which is size.

It would cost $600 to spawn one with a random stat tripled. It's pretty pointless, but it will introduce the rare threat that could kill surviviors 