|Genos vs. Armored Gorilla|
|Outcome||Genos is victorious|
|Cyborg Genos||Monster (Mutant - Cyborg) Armored Gorilla|
|Genos is uninjured||Armored Gorilla is moderately injured|
|Previous||Saitama vs. Kamakyuri, Slugerous, Frog Man, Ground Dragon and Beast King|
|Next||Genos vs. Carnage Kabuto|
After witnessing Saitama defeat Mosquito Girl, Dr. Genus becomes interested in Saitama's power and sends some of his creations to retrieve him. After Genos goes to Saitama's apartment, one of Dr. Genus's creations, Kamakyuri, busts through Saitama's roof and is swiftly killed by a ticked off Saitama. Outside Genos encounters Armored Gorilla and fights him.
Armored Gorilla attacks Genos but misses, and Genos counters with a kick before jumping back and charging. Armored Gorilla tries to swat him, but is blocked. It then shows Armored Gorilla charging at Genos, with Genos dodging and performing a failed counter with his incineration cannon which doesn't effect Armored Gorilla at all. The final scene shows Armored Gorilla defeated by Genos.
After this battle, Saitama and Genos are told about Dr. Genus and the House of Evolution. Saitama then decides to go there right away because he thought there was a sale the next day. Before leaving, Genos asks Armored Gorilla about the House of evolution's cyborgs in an attempt to find more information about the cyborg that destroyed his town as a child. Armored Gorilla states that he is the only cyborg there.