Jumping Spider

Jumping Spider was a Mysterious Being who changed after he didn't remove a spider that went into his ear.

History
Jumping Spider was a human who didn't remove a spider that went into his ear. This act, or lack of, caused him to turn into a monster.

Numbers
Jumping Spider is distrupting Y-City when heroes come to stop him. Jumping Spider is eventually killed by Genos and Saitama. However, Child Emperor attributes the credit to King. Fubuki later kills off the remaining parasites from Jumping Spider's dead body.

Abilities & Powers
Jumping Spider has been shown to possess impressive physical strength and speed.

Physical Abilities
Immense Strength: Jumping Spider was able to effortlessly knock back A-Class and S-Class heroes. Immense Speed: Jumping Spider was able to effortlessly dodge the attacks from multiple A-Class heroes.

Web Spinning: Jumping Spider is able to quickly spin webs, he has used this ability to disarm opponents.

Spider Parasite: Jumping Spider is able to release many small spiders from his body. It can be assumed that these spiders will create other "Jumping Spider"-like monsters if they infect a human. This ability persists even after death.

Quotes

 * "Gu Chi Chi Chi Chi..."