Thank you for giving the game a shot and for your valuable feedback! It's definitely a tough balancing act making a game where you essentially play as the final boss.
I knew I wanted the player to be the one dealing contact damage, but coupled with the fact that dashing gives you iframes, the game definitely ended up on the easier side. I did give the drone boss itself a lot of iframes just so it wouldn't get obliterated too quickly, which is another design choice I'm not too happy with. At some point I gave up on trying to make the game balanced and just put out whatever I was able to finish.
I do plan on adding another boss after the gamejam who I hope might be a bit more challenging, though I'm not yet sure how this will be done in practice without either nerfing the dash, or introducing a new category of enemies who don't take contact damage.