The Three Prison-Murderer Brothers (獄殺３兄弟, Gokusatsu San-Kyōdai) are characters in Bobobo-bo Bo-bobo. They are called the Super Hell Bros. in the English manga, and the Terrible Triplets in the English anime. They reside in Hallelujah Land.
The last of the three Hell Killers is, in reality, three brothers who work together as one unit. All of them use "Fist of Brothers" (兄弟奥義: Kyodai Ōgi) to fight and Together, the brothers are the guardian of the "Climb High Tower" attraction of Hallelujah Land, and are able to fight their opponents either split apart or as a brotherly team. But none of them expect the teamwork (or lack of) that Bo-bobo and his allies bring when they face them down!
Beep (ビープ) - The youngest brother, is a muscular man wearing black pants and a white tank-top. Beep fights with huge cat gloves on his hands and wears a huge helmet on his head that protects his bishonenous looks (these looks can act as a distraction towards his enemies). He really hates poop, so defeating Softon is one of his number one priorities (In the English dub of the anime, he is lactose-intolerant, since Softon's head looks like ice cream).
Megafan (メガファン) - The middle brother, can manipulate chewing gum that will have dangerous effects towards anyone that gets hit by it (including one that kills his opponent with its smell 30 minutes after being hit by it). He also can attack with a pair of scimitars. Out of all the brothers he is the tallest, and looks the most like a human (Beep always hides behind his mask, and there's no telling what Haou is). His clothing has a pirate-look and he carries around two swords, but hardly ever uses them.
Haou (覇王, Haō) - The eldest brother, is a small, green demon-like creature. Haou has frizzy black hair, and two small horns sticking out of his head. He doesn't say as much as his younger brothers and merely attacks with his fists. But his true abilities are unleashed whenever his two younger brothers transfer their power to him, allowing him to use the strength of all three at once.
The Brothers first appear without warning to ambush Bo-bobo and the others. They mangage to capture Suzu and Beauty (and brutilize Tokoro Tennosuke and Dengakuman). They are rather cocky at first, but when Softon shows up, they realize that they must resort to dirtier tactics. Megafan drags the girls to the top of their tower and traps them in his "Hell Gum". The gum lets off a revolting stench, and if Bo-bobo can't save them within 30 minutes, then the girls will die! But saving them is no easy task, as the rebels won't just be climbing the booby-trapped tower, they'll be fighting the brothers as well.
While climbing the tower, the rebels fight off the attacking brothers, (with techniques that are heavily influenced by Softon), until Don Patch arrives to help. The fight then turns in the rebels favor, as they begin to assault the brothers with their hajike skills, forcing the brothers to give all their energy to Haou, making him exremely powerful! Despite this, the rebels are still not impressed. Bo-bobo decides to finish them with his "Bo-bobo Roulette", an attack so random, that not even Bo-bobo knows what will happen to them! The brothers face an onslaught of meteors, ninjas, gender-changing, and one final attack from fist of the nosehair! Even their attempt to at least finish of Beauty and Suzu fails as well, as Softon secretly rescued them during the roulette attack.
The Prison-Murderer Brothers later become participants in the New Maruhage Emperor Playoffs, where only Haou manages to make it to the finals. He is later used as a sacrifice for the Reverse Maruhage Empire and his body takes a poorly drawn form! Haou returns to normal after the empire is defeated.
All three brothers are seen next to their employer (Halekulani) while attending Tennosuke's Maruhage Reunion.
- Hell's Gum / Take Your Breath Away, Bad Breath Bubble: Megafans main attack, blowing a bubble that he states will kill if left on contact with someone. Used against Beauty and Suzu at the beginning of the fight.
- Poison Bubble Flower / Big Brother Barrage of Bad Breath Bubbles That Hurt: Beep grabs Megafan's feet and spins him while Megafan blows Bad Breath Bubbles.
- Love Energy Recovery / Fist of Brothers: Our Beautiful Plead Will Whoop Their Butts For Me: Beep and Megafan attempted to.... kiss (but just stared at each other in the dub) until they were....tickled by Bo-bobo and Don Patch.
- Got Your Back Attack: Haou simply punches the enemy's back.
- Honorable Brother Cannon / Big Brother's Cannon: Haou jumps on Beep's shoulders while Megafan....punches Haou's head, causing Haou to spit fire balls.
- Doe-Eyed Teen: As an attempt to surprise Bo-bobo, it is revealed that beep's helmet is actually hiding the fact that he is a cute male. He is confident this attack will work as he states no one can "Crack a Cutie"
- Just Use Machine Guns / Fist of Brothers That Are Gonna Win One: Haou, Megafan, and Beep....shoot the enemy with lasers.
- Conjoined Brotherly Energy / Band of Brothers Personality Change: Super Bad Bro Mind Meld: Beep and Megafan transforms Haou into a stronger form. His face transforms back into its original form immediately after the title card.
- Episode appearances: 38-40, 70, 73 (Haou only), 75-76 (Haou only)
- Manga appearances: 196 (Haou only), 196.5
- Yasuhiro Takato (Haou)
- Yasuyuki Kase (Megafan)
- Hisayoshi Suganuma (Beep)
- Voice Actors:
- Michael Sorich (Haou)
- Yuri Lowenthal (Megafan)
- Anthony Pulcini (Beep)