The Doise

The Doise is the Floor 3 boss fight in Pizza Tower when playing as Noise.

Revival

Upon re-entering the boss fight after defeating him, he will appear as a corpse, and you will gain the no-hit achievement and P rank easily should you have gotten hit in the fight prior. This makes for a great backup strat for 100%/101% as you don't have to worry as much about getting hit for this boss, and loses only around 20 seconds.

To practice fighting this boss after defeating him, taunt in front of the boss gate three times before re-entering. Note that you will have to do this every time you want to practice after exiting the boss fight.