I managed to reach the upper left part which makes me see outside of your scene xD
I guess i am missing something because i can't do anything except attacking and walking around.
Intuitively i tried space for jumping for W works too. You could make both do it ^_^b
Volume pretty high, i'd either have a volume control or lowering it down a good notch.
Really cool graphics.
There must be a way to close this game without ALT + F4