i liked exploring and the open endlessness of it, i guess i just didn't like feeling lost before i started finding things like a boss to go after because it was kinda aimless. but ended up enjoying it anyway. yup, noticed there where more difficult enemies didn't know that what because of what i was eating.
some other thoughts i maybe should have mentioned:
the boss fight felt a bit too long
sometimes the camera didn't keep ahead of me and i didn't see where i was going
really liked the ai for enemies, felt like they where underwater, good job with that