Thanks for playing!
Enemies start off beefy (as you noticed) as an incentive to upgrade. Tho due to a lot of feedback I've gotten I've got plans to rebalance and change up how upgrades work and to balance out the player's power scaling. The enemies falling thru the floor glitch has already been fixed, but it wasn't fixed in time for the deadline lol. It came down to fixing that or getting enough sleep that night and I picked sleep.
I'm glad you enjoyed it! I had been wanting to make a game inspired by Downwell for a while and was super excited to get the chance!