Luffy - Powerup
Law - Powerup
Kidd - Powerup
Zoro - Powerup
4 of the 5 Rooftop fighters have become stronger since the roof.
Oda couldn't possibly give Killer a powerup, could he?
I find it hilarious that everyone on the rooftop gets the benefit of the doubt because of their participation up there, and people still shit on Killer, when he was up there alongside the others as well.