Pretty fun game! I really liked the weapon animations and switching!
I made it to level 2 and unfortunately got stuck inside a wall. The grappling mechanic was cool, but could use a little more fleshing out. I couldn't really tell when I was damaging enemies, so an animation or quick color switch would be helpful. Could use some sound effects.
It was tough switching weapon types on mouse and keyboard since they were on arrow keys. I'd suggest changing it to Q+E or 1,2,3, + 4,5,6.
Still impressive for a game jam game, nice work!
- Josh