Oh yeah, crushing enemies between boxes is great! It felt so good after figuring out how to play efficiently. I think a tutorial would have been nice to fully grasp what is going on, but at the same time, there might not have been time, plus it was fun figuring it out (It just took me a few lives to figure out what to do exactly haha).
I wish the field of view was wider so I could align shots easier, though. Overall, great job!