Fist off, the art is gorgeous , as well as the music.
The gameplay however has some problems in my opinion.
The controls are not good. The X and Z buttons are under WASD, so you have to take your fingers off the movement keys to access the attack keys. A much better control scheme would have been to have the attack options on the mouse buttons and the grapple hook on something like E , Shift or F.
Another thing that wasn't that good was the character controller. The player is way to floaty and the level design doesn't fit the movement. There are slopes but the character does not know how to deal with them, so it gets very janky at times.
Also why do you spoil all the abilities in the main menu ? It would have been way better to do a little tutorial that explains what an ability does when you collect it.
One thing that I really liked was the grapple hook. The animation, the physics of it and just how it feels is great.
And one last thing. It would have been great to have some more sound effects. The lack of them makes the game feel kinda flat.
But anyway, good job on finishing it. Keep it up.