Thanks for the comment! I spent a lot of time trying to make every corner worth exploring in the game to find some upgrade or lore detail.
I would agree that the dash needs something to balance it with the relatively easy enemies. Like you suggested, a cooldown could work.
A minimap was definitely on my list of things to do, but I realised that the current version of the game was small enough to have progression be fairly simple. I might go back and expand this game beyond this scope, or tackle a sequel in the future when I have time.
It's great that you made it to the end of the game. I would agree that the final boss probably is too challenging compared to the other enemies. I think maybe introducing the rockets earlier might have clarified what was happening in the final battle.
Thanks for playing!