The main mechanic is something that I need to make more important in the game, yeah. I'm changing it to defeating an enemy + getting a pickup to gain health. The gravity is meh, especially because bonking on something above you doesn't set your y velocity positive (thats how godot does y value, dont question it), so you can just sit on the roof for about a second while your y velocity goes from - to +. I need to add a fix for that as well. The random amount of speed was just me picking a speed and saying "eh, itll work", so yeah, that should get changed (or uniform). The way that the enemy HP works is when you first hit an enemy, their max HP is Player HP -1 (so that if you are at 1 hp they instantly die). That could be said more, and what I have is that when the healthbar shows on the enemy then their HP is set. I need to work on player feedback a lot yeah.
Thank you for this feedback.