i like the arrow mechanics and everything seems really solid, good visuals/audio/controls
i would suggest adding someway of teaching the arrow mechanics (through level design or text on arrow screen) as it took awhile understand what to do
also some bugs i noticed:
the energy arrows didn't always work and sometimes the arrows wouldn't stick
shooting buttons had the same problem
you let go of a grappling hook immediately after shoot if holding down spacebar (i also thought the grappling hook was a bit fiddly to get to work)
character has a hard time getting on top of a platform when a jump is barely makeable
enter/x to talk wouldn't always work either, would start spamming before it opened dialogue
also dialogue getting stuck and unable to progress for one of the characters (was in another language as well)
there were some minor visual glitched like the hearts going black until entering a new room, the screen going black when entering a room and being stuck like that until i start moving a bit, arrows that hit me continue to wonder slowly across the screen after
arrows getting stuck inside walls sometimes
its hard to aim in the dark because the crosshair is black...more of a nit pick