Killer Move: Serious Series (必殺ひっさつマジシリーズ, Hissatsu Majishirīzu) is a simple and unique fighting style used by Saitama which consists of a series of his "serious" moves. Whenever Saitama wants to exert more effort in combat situations, he employs these so-called "serious" moves, which are...

Killer Move: Serious Series (必殺マジシリーズ, Hissatsu Majishirīzu): In Serious Series, Saitama puts more effort into his attacks. His face looks more serious when he performs these "serious" attacks.

Saitama counters Boros's final attack with a Serious Punch. Saitama responds to this by unleashing his own trump card, Serious Series: Serious Punch. This completely nullifies Boros' massive energy attack and the pressure from it alone obliterates Boros. Additionally, the punch parts clouds across the globe for thousands of miles. Aftermath []

Saitama vs. Orochi is the battle between the hero Saitama and the leader of the Monster Association, Orochi. After its defeat by Tatsumaki, Gyoro Gyoro calls out to Orochi for help, but no response comes.

Saitama, Black Sperm, and Rover walking towards the Hero Association H.Q. Saitama destroys the level 1 defense robot. Getting targeted by the level 4 defense robot.

Saitama vs. Speed-o'-Sound Sonic: Round Three was the third fight between the B-Class hero Saitama and the ninja assassin Speed-o'-Sound Sonic. Genos vs. Speed-o'-Sound Sonic continues, as Sonic attacks Genos using Scattered Flash Slash.

Killer Move: Serious Series (必殺マジシリーズ, Hissatsu Majishirīzu): In Serious Series, Saitama puts more effort into his attacks. His face looks more serious when he performs these "serious" attacks.

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Seeing Genos' lifeless corpse, a sorrowful Saitama questions whether he truly has a hero's intuition. Overwhelmed by grief and anger, Saitama unleashes a devastating Serious Punch toward Garou, who responds with a Serious Punch of his own, having incorporated Saitama's striking power once again through his supernatural copying power, Mode ...

Feb 26, 2023 · Garou celebrates his return and presumed victory only to discover, to his horror, that Saitama was right behind him who compliments his ability to teleport to different locations.