Very visually pleasing, reminds me of Cuphead a little.
Could use more visual cues what what move hands are going to make, especially for lasers - maybe hands could start glowing for a short while before firing.
player control feels a bit floaty. Could increase gravity value and jump force to make jump faster.
Hammer feels seems slow, not sure if intentional - swing forward should be quick so it look like it has impact. swing back is ok. Other weapons seemed ok.