After killing the other man he turns to the orchestra and takes deep breaths, his ears leaking red liquids from how hard the sound was pressing on his ears, this was the end. If he couldn't finish them here there was no more hope.
WAFFLES! BACON BLADE! I'LL FINISH YOU OFF!
With his final phrase said he opens a rift above him with his arm, Waffles being sucked in and what appears afterwards is a huge metal blade without a hilt and an opening in the center of it, PK taking his laser blade and affixing it to the opening as it blares a variety of colors, channeling all the elements and power available in PK, before slashing once across the Orchestra. Releasing all the pent up enegry in one strike. Not knowing if it was for himself or the world. Even PK being blown back from the inital blast and having to lie on the floor. Even if it didn't work he had no energy left. At that point there was no hope, but inside in prays to whatever can hear him for the abnormality to be suppressed.