18-Volt
215px-18-volt.jpg
Residence Diamond City
Occupation Video Game Developer
Gamer
Music Lover
Species Human
Friends and Allies Wario
Mona
Dribble and Spitz
Mike
Jimmy T.
Dr. Crygor
Kat and Ana
Thang Family
9-Volt
Ashley
Red
Orbulon
Young Cricket
Master Mantis
Penny Crygor
First Appearance WarioWare: Twisted!
Latest Appearance WarioWare: D.I.Y. Showcase

18-Volt is 9-Volt's best friend who has failed Kindergarten multiple amounts of times. He has a very large stature and appears to be a teenager. 9-Volt and 18-Volt both appear to share the same love of video games, but 18-Volt seems to be more inclined to music, as he usually can be seen carrying a stereo as well.

WarioWare: Smooth Moves

In "The Multiplayer Test" 9-Volt is hanging around with 18-Volt at 9-Volt's House. 18-volt sees a Game & Wario (a dual screen model) and mistakes it for a Nintendo DS Lite. After 9-Volt corrects 18-Volt, 18-Volt becomes overly exited about the new vintage game. Wanting a chance to try it, he tries to take it from 9-Volt's hand, ripping the system in two. 9-Volt, very agitated, kicks 18-Volt out of his house. That afternoon, 18-Volt searches for a gaming specialty shop. He finally finds one, and must the player must complete a Microgame challenge based on Nintendo games. After completing, 18-Volt finds another Game & Wario  to find that 9-Volt is doing the same. 9-Volt stares intently at 18-Volt, then forgives him, saying "You will ALWAYS be my Player 2!" Then, "The Multiplayer Test" is over.

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