Best in the World

Best in the World is an anime episode of Btooom! that was released on 10/25/2012

Kira Kosuke is a disturbed child, but when on the island his true nature can finally come out, unchecked. That is until he faces the best Btooom! player in Japan.

Via Crunchyroll

Plot Summary

Kira toys with Ryouta
Kira toys with Ryouta

A grisly scene of a woman raped and murder is revealed. Two police men talked about the murderer is a 14 year old teenager, Kira Kosuke, and that Soichi Natsume is going to be Kira's lawyer. Somewhere in the forest, Soichi finds Kira impaling frogs while counting the kills. Kira questions why they pity killing frogs even though no one is bothered with it, and Soichi tells him it's still wrong. The two spot supplies parachuting near by. Soichi tells Kira to stand up to his father's abuse. Later, Kira's father finds the briefcase up in the tree, and he asks his son to give him a bomb. The father kicks his son in the crotch and takes the bomb. He tries to detonate the tree, and Soichi points that only Kira can detonate it. When Kira detonates the bomb, it quickly activates a vacuum before exploding. Yoshihisa opens the case and takes it. Soichi asks Yoshihisa to divide the supplies evenly, but Yoshihisa tells Soichi that the strong survive and that he found the briefcase. When Kira calls his father a scum, Yoshihisa grabs his son's crotch and squeezes Kira's testicles. In a flashback, Yoshihisa is busy playing games until his father barges in since Kira ditched school to play video games. Kira slaps his BIM on his father's chest and activates it. Yoshihisa attempts to take off his shirt, yet the half of his body is imploded. Kira is happy and tells Soichi that he finally stood up to his father. Soichi calls Kira a monster and runs away. Kira is angry that Soichi broke his promise of protecting Kira. Kira senses a radar, and he sees Ryouta and Taira arriving to the scene. Ryouta asks Kira if he killed the man, and Kira states that this is about survival of the strongest. While Kira takes his father's food and BIM, Ryouta and Taira make a run for it. After Kira activates his sonar, Taira trips and sprains his ankle. Taira urges Ryouta to leave him, but Ryouta go out to confront Kira. Ryouta uses his sonar, and Kira uses his sonar as well.

Kira finds Ryouta interesting
Kira finds Ryouta interesting

While Ryouta thinks about what to do and senses Kira is close, Ryouta charges at Kira. Kira tosses a bomb at Ryouta, and Ryouta quickly evades it. Kira chases Ryouta with glee when he learns that Ryouta is a Btooom! player like him. Kira notices Ryouta is running away, and when he jumps off the rock, a timer explodes. Kira survives the blast, and he throws his BIM at Ryouta. Ryouta finds himself getting suck by the bomb and throws his bag away. The bomb explodes, and Kira yells out and asks Ryouta to fight him for real. Kira starts insulting Ryouta and comments that they should treat this life as a real game. When Ryouta yells out, Kira tosses a cracker BIM at Ryouta. Ryouta gets blasted and hits his head against a rock. He tosses a cracker BIM at Kira, but Kira jumps down the rock to avoid the blast. Kira finds Ryouta and throws a BIM at him. Ryouta tosses an empty pouch and runs away. Kira uses his sonar to find Ryouta only to get no response. He thinks Ryouta is standing still, and Ryouta comes from behind to throw a timer at Kira. Kira tries using sonar multiple times only to get no response. He realizes that Ryosuke is canceling the sonar with his. Ryouta comes from behind and throws a cracker BIM at Kira. He gets a sharp headache, and he sees Kira on the ground barely alive.

Points of Interest

  • A fourth type of BIM is seen, it sucks things up before imploding.

Manga and Anime Differences


  • Japanese Name: 世界ランカー
  • Manga Chapter: 7 - 12 (Volume 2)
  • Opening Theme: "No Pain, No Game" by Nano
  • Closing Theme: "Aozora (Blue Skies)" by May'n

Characters & Voice Actors

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Kira Kosuke ( x ) ( x ) ( x )
Miyuki Sawashiro ( x ) ( x ) ( x ) (Japanese)
Soichi Natsume ( x ) ( x ) ( x )
Issei Futamata ( x ) ( x ) ( x ) (Japanese)
Yoshihisa Kira ( x ) ( x ) ( x )
Ryouta Sakamoto ( x ) ( x ) ( x )
Kanata Hongou ( x ) ( x ) ( x ) (Japanese)
Kiyoshi Taira ( x ) ( x ) ( x )
Toru Okawa ( x ) ( x ) ( x ) (Japanese)
Himiko ( x ) ( x ) ( x )


Add a credit to Best in the World. (No voice actors. Add voice actors to characters above.)
Junya Inoue Original Concept Manga Artist


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