Super fun and incredibly addicting! Managed to reach wave 15/12 haha. Everything feels super polished. Some upgradees felt weaker than others, I felt like I couldnt really get a good run without Faster Shooting. The heat death "upgrades" at the end are a very nice feature to make it not just end abruptly after 12 waves. I like the simple art style though I wouldve enjoyed it if the player looked even more like a fire. I had a great time with this game!