This has a lot going on for a jam game, which is awesome! The controls are pretty hard to handle, and as far as I could tell, you had to actually right click on the blocks, not just be standing by it. (I don't think I ever figured out exactly when and how you can connect blocks. Sometimes I could, sometimes I couldn't.) I would recommend swapping the characters, since in videogame shorthand, the player is usually on the left, and enemy on the right.
Very solid tight animations and overall really well done!