fun with one problem
i had fun and got to level 30 or so. not sure which it was. all i know is i was using the manned turret and gunning down bats, walked into the next room and a spike came up through the floor and killed me (unavoidable)
not a problem if the last checkpoint hadn't been so far back.
kind of unacceptable and i didn't feel like playing through all that again (including the room where waves and waves come at you) so i ended up not finishing.
good overall though. just a problem with level design. the engine and concept are all superb.