This game is fun! It definitely gives me Undertale vibes and I appreciate that. I got the second boss really low on health once but I haven't been able to beat it yet.
Not having a checkpoint system is really brutal, because I have to play the first level over and over, which is a little frustrating.
Also, I think having to click while on the attack squares doesn't serve much purpose. Why not deal damage simply by moving over it?
Update: I beat level 2 and got 3/4 through level 3 :)
Update 2: Did you actually submit this game for LOWREZ2020? I'm not able to rate this for the jam. Don't forget to enter it!