Nightmare Fuel / Bobobo-bo Bo-bobo

• Giga, full stop. Especially when we find out just exactly where he gets his art pieces... He uses a clay voodoo doll of his opponent to mold their bodies- while they're clearly in pain- into abstract positions and shapes, then turns them to stone.
  • His Nightmare Face when he's on a high of overconfidence in his Super Form.
• Gunkan's life-draining nose hair and the look he does beforehand aren't exactly welcoming.
• OVER. He is the first villain that is a true No-Nonsense Nemesis whose actions are taken seriously in this kind of world no less as he is introduced by ripping out Gunkan and Purupu's Hair for failing to stop Bobobo despite being equal Heavenly Kings.
  • The Fish-Eye Lens of OVER's eye when he describes the fact that his his orbs powered by his Hair-Trigger Temper is about to be unleashed and transform into his true form.
  • Subverted when that said true form is Torpedo Girl, a nonsensical character like everyone else.
• Byakkyo's surgery dolls, namely in how they are emerging from his body and his overall Ax-Crazy-ness beneath his stoic facade.
• Bobobo's Freak Out at seeing Gasser's Baby state, the camera is shaking and closing in & out does not help.
• From the same episode, Don Patch being extremely calm despite often going on an instant rage almost always, hints that he might be angrier than usual.
• Some of the never again referenced moments in the series that get into Surreal Horror due to the lack of explanation, especially in the earlier episodes.
  • Bobobo appearing as Bobobo-headed dogs.
• From the roller coaster rap, especially in the uncut version, it delves quickly into incomprehensible gibberish and surreal visuals including Don Patch stretching his face with an eerie expression before Bobobo's afro opens up to reveal mini-Don Patches doing the same things before he tosses some of them out.
• "CHURROS"!!!
• Don Patch and Jelly Jiggler's Wing Ding Eyes when touching Halekulani's money.
• Halekulani going Ax-Crazy after being beaten by Bobobo too many times, complete with completely white eyes with no pupils to emphasize his insanity.
• Bibibi's Big Brother Bully past towards Bobobo is surprisingly Played for Drama, unlike most of the series' more silly humor, all culminating in killing Bobobo.
  • The revelation of his Super Fist of the Hair Hunt, especially with the hovering demonic hands he summons for it.
    • The revelation that Bibibi is the one that reinitiated the current Chrome Dome Empire, which led to his nations's mass genocide and a twenty-year reign of tyranny. His reason for this? Because he was mad because Bobobo was chosen the heir of the Hair Kingdom over him.
• Gasser's Face–Heel Turn after the Time Skip, his No-Holds-Barred Beatdown, and his One-Winged Angel form of a horned, snarling demonic being.
• Some of the original soundtrack feels like they belong to a much more serious and dramatic anime than Bobobo due to how threatening and creepy they sound.
  • Mysterious appropriately plays whenever there's a foreboding moment of ominousness or when the mood takes a sudden turn to seriousness. Quite memorably, it was played during the beginning of the J fight, leading into Soften's surprise defeat.
  • Terrifying Margarita Empire plays whenever the more serious major villains do something sinister. It starts with an ominous organ before going into a sinister violin orchestra before gradually building up to a bombastic sound of villainous triumph.
  • Draw The Demon Fist! Serious and Dangerous! is a tense-sounding piece that continues to build as it builds into a much more frenzied piece. Memorably, it plays during the moment building up to OVER's transformation into Torpedo Girl, with the soundtrack in question plays into the inevitable situation getting worse.
• Babuu, from Shinsetsu Bobobo. He's quite similar to Byakkyo, in that he's a mad doctor who does many disturbing things and behaves in a frightening manner, with equally frightening attacks, such as his unnamed attack that involves him growing the heads of baby dolls from his body and having them extend out like tendrils, causing them to merge onto his opponents, plus, he can also turn you into a doll with the use of a vicious-looking horned creature with glaring eyes and veins all over his body that lives in his mouth, which he does to Plain Bread-Chan, who he then rips up. It's telling that the freaky-looking Karakuri puppet doll that Don Patch turns into is less frightening than Babuu himself!
  • It's safe to say that Yoshio Sawai probably had him act like a baby, down to the point of wearing baby clothes and speaking in a slurred way as a showcase to how disturbing he is, rather than how eccentric he is.