Bobobo-bo Bo-bobo - Season 1 - Eps 30: Revenge is a Dish Best Served Cold with Shitake Mushroom Sauce.
Just when the fight for King of Wiggin Specialist was finished, a big-mouth ninja assassin arrives to challenge Bo-bobo to take on his master, the horrific OVER of the Baldy-Bald Big Four! After Bo-bobo and the others can get past his bone-headed ninja tricks, he sends them to the entrance with a flying duck-loving warrior to face. (and Serviceman hanging by a limb) And beyond that is a force of The Ultimate Five Assassins to get past along the way, the first of which is...a playful little girl!?
About Bobobo-bo Bo-bobo

Title: Bobobo-bo Bo-bobo
First Air Date: 2005-10-01
Last Air Date: 2007-10-13
Status: Ended
Rating: 5.4/10 (from 27 votes)
Language: JA
Seasons: 2
Total Episodes: 76
Network: tv asahi
Genres: Animation, Comedy, Action & Adventure
Production Companies: Toei Animation
Synopsis
Based on the manga by Yoshio Sawai, Bobobo-bo Bo-bobo is one of the weirdest, yet funny animes using puns, cross-dressing, and lots of visual gags. Taking place in the year 300X, an evil organization knows as the Bald Empire (Margarita Empire) is planning to take over the world by stealing everyones hair. The Bald Empire, led by Emperor Baldy Bald, will have to go through Bobobo-bo Bo-bobo, who is determined to put a stop to them once and for all, if they plan to succeed. But it won't be easy, because Bobobo-bo Bo-bobo was trained to "hear the voices of the hair," enabling him to command his own body hair to perform various martial arts stunts to defend himself. Along the way, he will eventually need the help of all the different, yet weird friends he encounters in order to defeat the evil Bald Empire.
Cast

Ai Nonaka

Shinichiro Ohta

Masaya Onosaka

Takehito Koyasu