The basic concept here is something I enjoyed. It would be interesting to see more of the story. At the end it started to go a bit strange, with the monster zooming to the top of the allowable area, and the game slowing down to a crawl (Mind you, this is at 50 meat, and an egg was dropped at the same time. I don't know if this caused the problem)
The deduction of meat per hit and self-inflicted injuries, with the subsequent devolving was a nice touch. I'd like to see what happens when the character gets bigger, as either a story, or an in-game development.
There's also a glitch when you get hit constantly. Your monster doesn't devolve until after the sequences of being hit stops.
All in all this game seems to have a lot of potential. I'd like to see this progress into something a little bigger.