Several feats from Bo-bobo that I'm sure everyone here knows.
In Bobobo chapter 196, Hatenko states tha Bo-bobo can create worlds that are infinite.
Also, Bo-bobo destroyed the rest of planets of the Solar System with Sea otters. I don't remember the chapter. When i found it, I will update this post.
Like Super Buu, one of the Three sacks has an energy attack that can hit several places of Earth' surface at the same time.
Denbo-chan can use Dream Picture Book's paradise. The second maze has Cell, Freeza and the Gold Saints as traps. The anime replaces Freeza and Cell with an old man space tyrant and someone called Majin Puu. The Gold Saints are replaced with Zombies.
The fusion of the Three Sacks was seriously damaged by Freeza because he can't use dark power thanks to Denbo-chan's picture book.
During the fight against Icen, and before getting a power-up from Landmine Dandy, Bobobo broke the spacetime wall by playing taiko drums:
Also, Hell Dolphin ended on another universe
In the Hair Kingdom arc, Tsuru Tsurulina III returned and used a crystal ball to see who are the strongest beings around the land. These are Shigeki X, Bo-bobo and his brothers and sister. Ba-baba, Bo-bobo's older brother who never appears in the series, is the strongest of the brothers.
Shigeki X, in his strongest form, trapped Bo-bobo and Don Patch in a X-space:
In Shinsetsu Bo-bobo 69, Tsuru Tsururina III rewrites reality with
Tsururina World and turns the universe into a utopia where mankind is bald.
And then, Bo-bobo destroys Tsururina World with King Nosehair Typhoon. Don Patch, Tennosuke, Tsuru Tsururina III and Namero survive the typhoon.
By the way, this counts as a feat for Hallekulani? Bo-bobo summons Yugi in chapter 104 (This was changed in the anime). And Yugi summons a bad drawn Osiris. The Egyptian God attacks Halekulani and the villain survives the attack.
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In Shinsetsu Bo-bobo, Hepokkomaru splits the moon in half with the Vacuum Fart :