Thanks for playing. I'm glad you liked it.
I wouldn't be opposed to upgrades, but unfortunately the combination of precise mechanics and varieties in the enemies too up too many tokens. I also had a lot of trouble fitting the map in without going over the compression limit. That said, I did think about the possible reasons to fight or not fight when doing the map design. There's spots where I was tried to make it unreasonable to do the platforming challenges without clearing out the enemies first, but also spots where I tried to make it unreasonable to fight every enemy specifically because I wanted the player to be thinking of running past enemies as a legitimate strategy. I think I just wasn't very successful at encouraging fighting in the first section (out of four). Part of that is because it's easier to force a fight when the player is going up rather than down.
If you play again at all, here's a tip that might help: the bats and other melee enemies still have cooldowns on their attacks, so if you dodge through them first then attack you'll be less likely to get hit.