Nice work. I like how this is almost more a turtle game than a mutation game, really did a good job with the wild card. The mutating feature of the turtle is super neat and I like how it can effect the difficulty of your game.
I think most people already pointed out the lag issue so nothing new there, I had a problem where my aim would constantly moving downward which was just added difficulty, but I'm unsure if that's a problem on my end because it's happened before playing a 3D game in one of these Jams.
I don't know how, but for some reason you've succeeded in making the turtles terrifying, jumped scared turning around and seeing one right in my face.
I cleared several waves/bosses but I wasn't sure when it was going to end. Another neat thing I noticed is the bosses charge attack tries to lead it's shot when you are moving, I thought that was a great touch.