I mostly do no powerup runs and wondered if it was possible to use the blue potion in a no powerup run as it does not 'power up' your character forever but instead as a temporary boost. I belive that the blue potion should be usable in no powerup runs but what is it?

For the no powerup ils you can actually use powerups (yes I know) just you can't start the level with powerups.

Thank you for that explenation, I belived that powerups were unusable during no powerup il runs.