I just killed the boss. Do they respawn? Could be fun to farm them as endgame.
Random thoughts:
Certain monsters gave XP to some stats, which I think was an interesting touch that could open up more strategic gameplay. But it only seemed to be the frogs and chickens?
Maybe some progression could be added to the monsters? As you kill them, they level up and give slightly better rewards? Could dump money into a monster to make them more worth killing? If you have to target farm stats from certain monsters, could make going back to earlier floors and leveling those monsters more worthwhile?
It might be fun to be able to place stairs/teleporters to move between the floors? If there is a reason to go back to them? To run past some healing towers to survive another loop?
Could add unlockable abilities with cooldowns? And then eventually unlock the ability to auto-cast them?
The mushrooms that give money when you run past them seem like they're very good with no risk. It seemed like the optimal strategy was removing most/all fights and increasing run speed? Maybe give them a cooldown? Or reset after killing 5 monsters in their vicinity or something? So they build economy but are more "support" towers that make killing other monsters more worthwhile instead of just sprinting through fields of mushrooms handing out cash?
More "support" towers could make it more interesting planning out floors, like the healer mushroom. I didn't find much of a use for the healing mushroom, but I didn't experiment with them much because It also healed the enemies. You could make more boss floors in-between floors? And building the proper setup for that floor could be a bit of a puzzle element? Farming the earlier levels to add more support towers to the boss floor? Farming the enemy that gives poison resist so you can kill the snake boss? Unlock cure poison on the support tower by leveling it up? Could have different upgrade paths, one could do damage buff, attack speed buff, etc.
Just brainstorming! 🫡