Your level design skill is impressive. The monsters take their time before disappear though the mechanics work the moment they died. Since there is no UI to show HP, I just tanked everything and bulldoze my way through the end. There should be some kind of messages to show that the game is ended. While playing your game I got some ideas on what kind of game I can make as rogue-like dungeon crawler like this, just the idea alone is already fun tbh.