Wow this feedback is exactly what I was looking for! Thank you so much! I'm definitely gonna work on the UI scaling issues before officially publishing.
The "drop bombs when dashing" upgrade is definitely the hallmark upgrade if you want to go a bomb build but the bombs being able to damage yourself as well as the unpredictability of being able to dash into a group of enemies without taking damage felt like maybe a big enough drawback to that power. I guess I should probably put a small cooldown on the dash to balance things out.
Thank you again for playing and for the really helpful feedback!