Ingenious idea! Reminded me a little of 2048 in the sense that the playspace is static and the sum of the player's choices becomes obvious as the game progresses and blocks and monsters begin to litter the grid. I think the internal rules of the game are communicated pretty well, enemy movement is predictable and has a visually clear cooldown, and the upgrades make sense pretty quickly after they're first played. Fun and playful visual presentation too - if you made these assets, they're very cute! For feedback, the display warping effect feels a little radical for a vertically oriented game, and so things like the hands in the game over state feel a little squished in there. This was easy to play over and over again until the RNG allowed me to use the much coveted Nuke Kill, which felt very satisfying!