is one piece episode 88 filler?

Luffy plants Hiriluk's flag on top of a tower and propels himself towards Wapol and Chessmarimo. He then asks Chopper if he would be a able to handle Chessmarimo by himself and he responds by saying it will be "a piece of cake".

Chopper takes a Rumble Ball out and consumes it. He starts fighting with Chessmarimo who got out two bows with an incendiary arrow on each one.

He shoots the arrows but Chopper is able to dodge them both. Chessmarimo now gets out four wooden hammers and Chopper explains the drug and how he can use seven forms.