I love the visuals, everything felt cohesive and bold. Felt open yet subtly restrictive (like any good Metroidvania!) so big points for level design.
The only thing I would have loved to see is remappable controls/using the right side of the keyboard as attack, 'E' felt a little cramped, and it's not my personal preference to use the mouse unless you need to aim. But this also isn't big enough that I'd remove points for it!
