There's a great concept here with setting up fun traps to kill the beast, but the execution is much too random to be any fun. I think part of the issue is that the levels are too small to set up anything meaningful. It also seemed like no matter what I did, I did very little damage (except for the glue, which, for some reason, instantly kills the beast).
I love the oldschool Newgrounds flash feel like pointed out in another comment, and the sort of janky physics movement adds a lot of charm. A lot of potential here at the very least!!