A short and fun little game. One of those "I wish it were longer and that's a good thing" games. I think everything came together quite well to make something worked very smoothly.
A couple little things that might be worth mentioning. I felt like the grapple hook seemed a little underwhelming (until started trying to use it at an angle), since a lot of spaces where I wanted to use it, it seemed to be too short. Not sure if either part of that was the intent.
The melee also seemed generally inferior to the ranged attack, but I'm also not sure if that was the intent.