Metal Slug Wiki
Metal Slug Wiki

Avvio is a new character introduced in Metal Slug Attack.

Character Summary

Avvio is a member of the Metal Device Project, although unlike the other members who either have a suit or given prosthetics, he was given a special pistol. This pistol uses special thunder bullets and can generate a small ball of electricity to zap enemies.

He's quite acrobatic and also carries a grappling wire which allows him to evade incoming attacks and fire on enemies at the same time.

Outside of his agility and gun skills, Avvio is a narcissist, attempting to hit on any female regardless of their age or affiliation, calling them "little kittens". He attempted to hit on Rita once, but this caused an incident in which he was sent flying from the base. His alternate win animation suggests that he is attracted to her the most out of any other female. When not in battle, he spends his time carefully grooming his appearance.


Extra Ops

First appearing in "Task Force 3rd", Avvio is assigned to the same group as Fio and Roberto to an island for additional training. He easily avoids several traps, prompting Midori to comment on his agility, before he hits on her, causing the young mechanic to roll her eyes. Roberto yells at him for causing Midori to roll her eyes, in which he claims that she'll understand as she grows older, prompting him to roll his eyes too.

The pair later encounter Schwarz Metzelei and Fedeln Metzelei, where Avvio attempts to hit on Schwarz, before Roberto yells at him again for getting distracted. He defends himself by stating that Roberto was smitten with a Rebel idol before, prompting Roberto to drag him away for revealing an embarrassing secret.

Following the run, Avvio is dismayed that there isn't a unit strengthening skill for "handsome men", as Roberto scolds him for lacking teamwork skills. Eri then decides to take the "lumbering idiot" (him) for another run. He attempts to hit on her, but Eri threatens to kill him if he tries it, putting him in place. Eri then drags him away, much to his dismay because he won't have any time to look at himself.

With all the new weapons being developed by M.D.P.S, Avvio and Roberto are talking about them just as Rita sighs. He notes that she is unusually depressed, but attempts to console her by stating that her legs are better than any weapon they could develop.

Another Story

He first appears in "New Generations!" where he's first seen sparring with Reika. Following an attack by the Rebel Army which nearly destroys the base, Avvio is scolded by Eri for giving up and being too distracted.

The incident in with Rita is also revealed in the story's secret ending, in which he was sent flying out of the base because Roberto feared that Rita would unintentionally kill him in training, and asked him to bail him out by using his "obnoxious" lines on her.



  • Avvio is the second newcomer male for the Regular Army, the first being Growl.
  • His appearance is loosely based on Tohru Adachi from the Persona 4 games.
Heroes Main Series Marco Rossi | Tarma Roving | Eri Kasamoto | Fio Germi | Trevor Spacey | Nadia Cassel | Ralf Jones | Clark Still | Leona Heidern
Spin-Offs Walter Ryan | Tyra Elson | Hero | Gimlet | Red Eye | Tequila
Mobile Roberto Nicola | Nathalie Neo | Alisa Stewart | Helton | Tilde | Nikita | Matilda | Amir | Whip | Heidern
Support Hyakutaro Ichimonji | Rumi Aikawa | Madoka Aikawa | Utan | Navel | Selina | Issenman Tarou | Eris | Hyakumantaro | Pupipi
Villains Main Series Donald Morden | Allen O'Neil | Abul Abbas | Rootmars | Doctor | Avatar of Evil | Invader King
Spin-Offs Allen Jr. | Oguma | Macba | Lt. Wired | Kanan | Hilde Garn
Mobile Unknown Alien | Victor | Ptolemaios | Anubis the Chained | Nanook
Instructors Sophia Greenville | Margaret Southwood | Riviera von Wittenberg | Maryell von Wittenberg | Cynthia Hartnett | Anne
NPC Announcer | POWs | Duke Koudou | Satiko Suzuki | Gerhardt City Civilians | Scott Amundsen Jr. | Miner | Genie of Lamp | Orca | President | Survivors | Fishman | Lumberjack | Sailor | Chinese Soldier
Crossover KOF Team | Battle Cats
Unused Phil Gene | Michiko Nakajima | Angry Man | "Achilles" | "Tabomba"
Metal Slug Attack
Regular Army Associates MS-Alice | Anna Wiese | Midori Schumann | Mello | Rita Lewinsky | Amber | Nikita | Reika Bradford | Louise | Gisee | MS-Heart | Ashley | Rocky | Growl | Jephet | Victoria | Claudia | Kanae | Howell | Phi | Elizabeth Mariani
Metal Device Project Perche | Ami | Molly | Menzel | Ulala | Maggie | Avvio | Quaith | Karen
Rebel Army Associates Rapid | Julia | Chloe | Izabella | Edda | Growth & Cline | Naomi | Alesha | Jane Doe
ACE Abigail | Dion | Romy | Kriemhild | Katalina
"Frozen Brigade" Beatriz | Vicky | Dolores
Blaze Brigade Grazia | Loretta | Norah
Allen Platoon Destrade | Huracan | Conny | Nantes | Padwah
Science Department Vita | Navy | Nova | Emma | Millefie | Sylfie | Fluffy
Arabian Army Shizuka | Aisha
Ptolemaic Army Rebellion Dragunov | Yoshino | Caroline | Veronica | Sisilia | Towa | Simon | Miharu | Chunyan | Owen | Sho | Lucy | Phoebe | Josette | Mizuna | Matilda | Little Lady Black | Svetla | Humphrey | Lithos | Yutong | Tatyana
Cultists Mira D. Genesis | Maria | Damian | Achetto | Sally | Cara | Oao-One | Sorceress
Secret Sect Anastasia IV | Believers | Beecham | Melvina | Anastasia I | Zahara
Space Army Martians Professor "Aionion" | Mars People Neo | Percier | Clone Abby | Clone Betty | Mars People Rangers | Ariadna | Gemini Twins | Halle | Bonny | Clario | Harriot | Code Marionette:Un | Pauline | Leone | Claris | Unsigned | Draco
Invaders Odette | Annette | Lydia | Nowan | Schwarz Metzelei | Fedeln Metzelei | Rillacle | Franke | Teleko | Bloom Metzelei | Odile | Bersek | Geweih Metzelei | Purple King | Barbeln | Biene Goldenes | Swordeist | Drache Goldenes | Eis Monstrum | Ai Agate
Independent Army Amadeus Syndicate White Baby | Alma | Iron Fortress | Valerian Bears | First Baby | Type:Ant-Lion
Red Goblin Society Scotia Amundsen | Red Goblin | Vatn | Jin | Aileen | Elena | Licht | Ichima | Wendy | Bushin Tenzan
Mummy Army Pharaoh | Cleopatra | Hemet | Arsinoe | Hathol | Sharifa | Ramal | Sekhat
Vampires Aswang | Agalia | Sharl | Grace
"World Military Corp." Kelly | Maya | Mirror Mantis
Mirage Circus Cocatrix | Bunny
Independents El Dorado | Elysion | Esther | Teresa | Minerva | Yang Dao | Otto | Yuki Tsuki Hana | Ido