Space Marine vs. Alien

It's been forever since I've posted on here, so I figured I'd upload what I'm working on so far. I wanted to do something both for games and with a creature, so this is what I came up with. Both rigs have their issues, one of the notables being the creature's lack of proper IK legs, which make locking the legs down a painful task. It doesnt help that its got four legs and two pincers either. So here's what I have so far. Enjoy!