While he does have a high amount of health he can die.. in my case he died to a HUGE swarm of angry bees during the spring season. (I came across a big field of flowers with at least 16 hives around it)

Perhaps there should be a way to revive him or at least craft him like with the MyPet mod because playing without uka uka is a little bit annoying and sad now.

Or even better make him spawn back after you die and he can revive you OR he spawns back after you revive yourself with any method.

I think that would make this mod a little bit better. Otherwise great mod because my friend LOVES playing as cortex.