But in the very next scene he's normal again

Rubber fruit let's him stretch

Gomu Gomu No mi (model nika)*

Yeah I know

He's rubber what you expect

Well what about the dude with the staff in enies lobby, hes not rubber but hes able to control his body and instantly become skinny again

Who??

When chopper took 3 rumble balls for the first time, thats who he was facing

Bad description
LMFAOOOO
kumadori is a master of Rokushiki (Six Powers) and Seimei Kikan (Life Return), allowing him to manipulate his body and hair with great skill

YES

I was about to say something about the hair too