Chopperman: Yuke Yuke! Minna no Chopper-sensei

My impression after reading the first chapter:
Wow, just wow... Man that sucked ASS.

I mean seriously, it's the comedy elements from One Piece, which on their own are already tired, forced and over-used, but bearable thanks to Oda's qualities as a writer, but in the hands of some third-rate hack, they are just embarrassing.

Couple that, ergo the least entertaining part of One Piece, with the least interesting character(s) and with the added bonus of a less serious take on them making them nothing but flat, personality devoid clichés summed up by one word each, add in the lack of Oda's superb drawings and replace them with something drawn by somebody who barely comprehends the style Oda uses, and what we've got is something of the worst I have ever read.

While the other spin-offs were at least tolerable, this was an atrocity by all accounts.