Very cute! I loved the concept. I noticed a weird glitch once when the enemies all piled up in a corner and a few of them somehow ended up getting pushed through the wall. Outside of that one time, though, I didn't really have to deal with the enemies as long as I kept moving. If you iterate on this idea further, it might be cool to have shorter walls you can throw your kids over. You could create some really cool puzzles with just a few more mechanics!