I really liked the player animation. Background were ok, but felt a little dead.
Gameplay wise there wasn't a lot going on though. Just walk, attack, repeat, and killing enemies wasn't particularly satisfying.
It could have used some checkpoints - being sent back to the beginning after dying wasn't very fun.
The movement/platforming was ok. Nothing amazing, but nothing bad either - the player wasn't too fast or slow and the jumping was responsive and didn't feel too floaty.