Just because an anime villain looks badass doesn't mean they'll meet their end with dignity. When the going gets tough, seemingly horrid antagonists often devolve into fits of screaming, crying, and begging for mercy.
Humiliating anime villain defeats are especially satisfying when the evildoer is an awful person. Watching Sword Art Online's Nobuyuki Sugou wail like an infant is amazingly gratifying, as he spends most of the series sexually assaulting and coercing innocent people.
Things get a whole lot less fun when a sympathetic anime villain falls apart. It's hard to watch Light Yagami of Death Note meet his end, as fans know the boy's heart was in the right place at the start of the series.
Speed-o'-Sound Sonic Gets Punched Between The Legs In 'One Punch Man'
Speed-o'-Sound Sonic wholeheartedly believes he's Saitama's rival. If this were a conventional anime, the two would have a no-holds-barred battle to decide the most powerful warrior.
However, this is One Punch Man, so pretty much all shonen tropes go out the window. Saitama easily defeats his so-called rival – who he has no particular interest in – by punching him in the crotch. Way to bring a villain back down to Earth.
Nobuyuki Sugou Cries Like A Baby In 'Sword Art Online'
Nobuyuki Sugou is one of most hated anime characters of all time, so watching him go down in a blaze of shame is deeply satisfying.
Sugou, AKA Oberon in the virtual world of ALfheim Online, traps Asuna's consciousness in a cage while her body lies comatose in the real world. He then persuades Asuna's father to accept a marriage proposal on her behalf, while in the game he repeatedly molests her.
Kirito defeats Sugou's digital persona, and also manages to foil his plans in real life. In-game, an act of deus ex machina gives Kirito total control of the world's settings. He turns the game's Pain Absorber program all the way down to zero, so when Sugou's character gets hurt, he feels it in real life.
When faced with actual pain, the haughty Sugou is reduced to a sniveling wreck, and he's easily defeated. Back in reality, Sugou tries to get revenge by attacking Kirito in a parking lot, but the hero overpowers him, then turns him over to the police. It's easily one of the most satisfying moments in Sword Art Online.
When Envy is defeated, it's a deeply distressing moment for everyone involved. The homunculus is one of the main villains in Fullmetal Alchemist: Brotherhood, and its menace is great enough to inspire a truce between Scar, Edward Elric, Roy Mustang, and Riza Hawkeye.
Envy tries desperately to convince the rag-tag team to destroy each other. However, Edward soon realizes Envy's pleas are motivated by jealously, as it covets humanity's ability to forgive past wounds and form genuine bonds.
Ed calls Envy out for being emotionally stunted, causing the villain to burst into tears. Utterly humiliated, Envy kills itself by removing the Philosopher's Stone that keeps its body running.
Frieza is a ruthless galactic warlord. He commands a group of deadly alien killers, and doesn't hesitate to destroy entire planets. After his crew is dismantled by a mysterious young boy, Frieza is furious, but he never stops to consider whether his new adversary is a genuine threat.
The boy turns out to be Future Trunks, AKA the son of Vegeta, one of Dragon Ball Z's most powerful fighters. When the two finally square off, Trunks slices Frieza cleanly in half, chops him into little pieces, then vaporizes his remains. Frieza doesn't really have time to feel humiliated, but had he survived for more than 10 seconds, his final moments would have been tainted by shame.