Achievement unlocked: beat night 20 without touching a key or getting hit.
Lots of burning earthen orbs, orbs give more experience, orb speed on level up, random ability on level up, and abilities to both get an orb and atomize orbs.
Nothing got through the wall of fast orbs, though it was a close thing a few times when the orb wall moved inwards as the secondary effect of the gain-orb ability.
I also had shot speed on level up and shot damage on level up, which I had lots of fun using on earlier nights, but I wanted to see if I could get through the last night without firing.
