Really cool idea! As a fan of Vampire survivors it was fun to try and do the opposite and get myself killed. I like that the upgrades also are meant to get you killed faster. I played twice with first time being ~2:24 and second being ~1:57.
I'm not sure if I'm sold on the upgrading healing you though... I guess it gives a bit of a decision, like do I try to level up fast to get lots of "debuffs", or do I not and just try to take pure damage. For me it mainly discouraged me on trying to level up, which I would prefer to do as leveling up with new dying assisting powers stacking on would be more fun to me. I wonder if instead of healing instead you just had an extra massive health bar? Just a thought I had while playing.
Other than my tiny critique though this game is very good. Well done to your team submitting and excellent take to the jam!!