is one piece episode 76 filler?

Once back at the pedestal, Usopp finds Luffy drinking tea with Miss Goldenweek, while their friends are already completely covered in wax and their time is running out. He burns Luffy's shirt, upon which Miss Goldenweek had painted, using a flaming projectile.

Luffy, again himself, attempts to destroy the pedestal but is interrupted by the returning Mr. 3, who creates himself a Candle Champion. Usopp is finally struck down by Mr.