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This page relates to a Metal Slug Attack unit; for more information about this boss in the main series, see Aeshi Nero.

MSAUnitSilver
MSAUnit Assy Nero
Assy Nero
Rarity
MSA rarity Super Rare
Faction
MSD faction Rebel Army 24px Rebel Army
AP cost
MSA dot III 1,300
MSA dot IV 1,170
MSA dot V 1,040
Optimal range
Long
Traits
N/A
Playable since
1.10
In-Game Description
"This Super Crossbow Rotary Ground Drill was brought into Arabian underground ruins by Morden's Army"
Assy Nero MSA idle

The Assy Nero is a Super Rare unit in Metal Slug Attack, first appearing in the Extra Ops titled "Golden Soldier". Currently, Assy Nero's parts can be obtained through the Regular Army's second chapter in Another Story dubbed "The Sand Kingdom and the Golden Hero".

When deployed, it initially hides underground - although players can still see where it is via their radars. When it reaches an enemy ground unit, Assy Nero will burst up, and will also destroy projectiles that are above it when it appears. Enemy units that touch Assy Nero will also be damaged when it appears. The damage it deals when appearing increases greatly when MSA Skill small + 4 is unlocked.

Once it appears, Assy Nero will stay there (like units built by the Miner), launching missiles at the enemy as a standard attack. It's high health and large size give it good tanking capabilities, though it fares poorly against units like Cleopatra who can destroy it with ease. Sending Assy Nero with a large amount of similarly sized units (like the Big Shiee) can surprise opponents.

When Assy Nero, Big Shiee, and The Keesi II are placed in the same deck, they form the "Second Rebellion" team, lowering their AP costs by 15%. The team bonus is helpful with a Silver or Gold framed Assy Nero given its higher AP costs compared to the Big Shiee and the Keesi II.

Attacks

Long Range

Attribute grenade Drilling Missile (Spread) - Fires seven homing missiles from its mouth.

Special Attack

Attribute grenade Electromagnetic Convergence Ammo (Spread) - Seemingly goes idle before a big blast of energy erupts from its mouth. A large boulder shortly appears and crushes enemies in front of Assy Nero.

Stats

Health Attribute Resistance
Lvl MSA dot I MSA dot II MSA dot III MSA dot IV MSA dot V Attribute pistol
Kinetic
MSA resistance 2-Normal Normal
1 25000 27500 30250 33275 36602
10 37500 41250 45375 49912 54903 Attribute grenade
Explosive
MSA resistance 2-Normal Normal
20 50000 55000 60500 66550 73205
30 62500 68750 75625 83187 91506 Attribute fire
Incendiary
MSA resistance 2-Normal Normal
40 75000 82500 90750 99825 109807
50 87500 96250 105875 116462 128108 * HP might be increased by skills / items or buffs

Skills

MSA item I Banana MSA item II Cat MSA item I Shoes MSA Skill small + Strengthen Armor

HP will increase by (10%, +0.5% each level).

MSA item I Frog MSA item I Bread MSA item I Carrot

MSA item III Drop Shot MSA item III Wate Rock MSA item III Wate Rock MSA Skill small + Equip Anti-Armor

Critical rate for all attacks will become (10%, +0.5% each level).

MSA item II Poo MSA item II Monkey Thief MSA item II Apple

MSA item IV Big Flame Shot MSA item IV Waste Wood MSA item IV Waste Wood MSA Skill small + All-Around Armor

HP will increase by (20%, +1% each level).

MSA item IV Big Laser MSA item III Diet Pill MSA item III Dumpling

MSA item V Two Machine Guns MSA item V Drilling Missile MSA item V Drilling Missile MSA Skill small + Grand Blaster

The firepower at appearance has increased by 40%, +2% each level

MSA item V Vulcan MSA item IV Emblem (White) MSA item IV Pig

MSA item V Zantetsu Sword MSA item V Hydraulic Energy MSA item V Hydraulic Energy
MSA item V Thunder Shot MSA item V Emblem (Blue) MSA item V Apple Barrel.

Introduction Video

Metal Slug Attack Units
MSA faction Regular Army Soldier | Utan | Marco | Tarma | Hyakutaro | 7000000taro | Eri | Fio | Nadia | SV-Camel | Ostrich Slug | Slugnoid | 6000000taro | Trevor | 8000000taro | Fio(Monkey) | Nadia(Monkey) | Marco(Monkey) | Trevor(Monkey) | Walter Rian | Tyra Elson | Pocket Marco | Trevor (Mummy) | Fat Tarma | Slug Mobile | Donkey Slug | Motorbike P.O.W. | Motorbike P.O.W. Ver.2 | Fat Eri | Bradley | Zombie Eri | Donkey Slug (Eri) | Fat Marco | Fat Fio | Anna Wiese | Snowwoman Nadia | Red Eye | Gimlet | Roberto Nicola | Ostrich Slug (Clark) | Slugnoid Type-B | Drill Slug | Zombie Nadia | Zombie Fio | Special Trevor | Alisa Stewart | Nathalie Neo | Drill Slug Ver.2 | Slug Copter | Airbone Metal Claw | Slugnoid Type-Ikari | Zombie Tarma | Zombie Trevor | Metal Claw | SV-001 Experimental | SV-001 | Slug Armor | Protogunner | Elephant Slug | Everlasting Summer Eri | Christmas Eri | Everlasting Summer Fio | Special Nadia | Whip | Valentine Nadia | Leona | "Cat Ears" Leona | Clark | Ralf | Rumi Aikawa | Christmas Fio | MS-Alice | MSA (Marco) | Zombie Marco | SV-001 Type-R(Marco) | Madoka Aikawa | Jet Clark | Crazy Ralf | Lightning Fio | Slug Flyer | Slug Gunner | Regular Army Helicopter | Heidern | Augensterm | Elephant Slug (Battery) | Deformed Slug Gunner | Super Devil Marco | Super Devil Eri | Slug Gigant | Slug Gigant MK II | Rootmars Slug
MSA faction Rebel Army Rebel Infantry | Bazooka Soldier | Shielded Soldier | Rebel Rifleman | Paratrooper | Bikers | Rocket Bomb Soldier | Mortar | Arabian Soldier | Girida-O | F.Rebel Infantry | Gatling Soldier | LV Armor | MH-6 s | M-15A Bradley | Iron Iso | Di-Cokka | Arabian Fighter | Rebel Infantry (Wrath) | W.Soldier | Mortar (Wrath) | Camel Rider | Flying Tara+ | Bodyguard (Rebel Infantry) | Bodyguard (Shielded Soldier) | Abul Abbas | Bodyguard (Rebel Rifleman) | Dararin Dara Dara | MH-6 s Ver.F | Eaca-B | Scrap Cannon | Patrol Robot | Iron Iso II | Rebel Walker | Balor | Nop-03 Sarubia | Regimental MH-6 s | Girida-O Ver.F | T-2B Melty Honey | Airborne Melty Honey | Elite Arabian Soldier | Big Gate | R-Shobu | R-Shobu Ver.F | R.R-Shobu | Subway | Everlasting Summer Abigail | Special Beatriz | Everlasting Summer Beatriz | Allen O'Neil | Formor | Parachuetruck | Mini Jupiter King | Vita | Navy | Gen.Morden Ver.Di-Cokka | Nova | Shoe | Karn | Beatriz | Abigail | Iron Nokana | Hairbuster Riberts | Jupiter King MK II | Allen Jr. | Spacey Nokana | Iron Nokana MK II | Allen O'Neil (Wrath) | Hi-Do | The Keesi II | The Keesi III | Emain Macha | Iron Vermilion | Jupiter King | Big Shiee | Bull Drill | Sergeant Drill | Rebel Gigant MK II | Iron Cab | Red Devil Morden | Hodumi+ | Crablops Type-F | Assy Nero | Rebel Gigant | Tani Oh | Donald Morden | Iron Sentinel | Crablops | Cabrakan | Kraken | Union
MSA faction Ptolemaic Army Guerrilla | Bazooka Guerrilla | Shielded Guerrilla | Guerrilla Mortar | Sniper | Special Force | Special Force (Rider) | Hover Units | Girida-O Ver. P.M. | Di-Cokka Ver. P.M. | Gunner Unit | MG Unit | Claw Unit | Flying Tara Ver. P.M. | Hover Vehicle | A.P.C. (Special Force) | MH-6 s VER(P.M) | Guerrilla (Captain) | Sarubia II Ver.P.M | Ptolemaic Slug EX | Masked Soldier | Masked Soldier (Curse) | Special Caroline | Elite Hover Unit | Commander | Bradley Ver. P.M. | Sarubia Ver. P.M. | Special Dragunov | Ptolemaic Slug | Commander (Navy) | Black Hound | Everlasting Summer Dragunov | R-Shobu Ver. P.M. | Everlasting Summer Yoshino | Sisilia | Yoshino | Caroline | Veronica | Dragunov | Augensterm Ver(P.M) | Jupiter Queen (P.M.) | Metal Rear | Metal Rear EX | Deep Sand Marine | Sand Marine | Ptolemaios (Curse) | Emerald Turtle | Stone Turtle | Ptolemaios
MSA faction Aliens Zombie (Woman) | Zombie (Man) | Zombie (Fattish Man) | Hopper Mecha | Scientist (Zombie) | Zombie (Rebel Soldier) | Flying Parasite | Mars People | Mini U.F.O. | Invader | Hunter Walker | Mars People Pocket | Clone Eri | UFO Invader | Tar Man | Mars People Cadre | Halloween People | Vanguard(Type-A) | Ring Laser Mecha | Smasher | Lydia | Golden Hunter Walker | Tar Man (Red) | Tiny UFO Type:A | Flying Core | Mars People (Neo) | Mars People Elite | Clone Fio | Clone Fio (Zombie) | Winged Invader | Party People Elite | Ring Laser Mecha(Red) | Crab-Tank | Mars Mecha | Dai-Manji | Monoeye | Professor | Percier | Dark Monoeye | Odette | Annette | Mars Professor | Vanguard | Brain Robot | Mars Brain Robot | Monoeye UFO | Rugname | Rootmars | Rugname X
MSA faction Independent Pirate Soldier | Chariot | Samurai Infantry | Chowmein-Conga | Bat | Native | Native (Bird) | Hazmat Soldier | Mutated Soldier | Man Eater | Sasquatch | Halloween Soldier | Japonese Assault Force | Samurai Tanks | Dog Mummy | Mummy | Hunged Mummy | Maggot | Huge Locust | Flying Killers | Samurai Plane | Amadeus Robot | Mini Hermit | Researcher | Pirate Assault Soldier | Pirate Soldier(Ghost) | Amadeus Soldier (Shield) | Samurai Infantry (Wrath) | Big Snail | Dangling Snail | Amadeus Corporal | Mummy Cat | Hazmat Soldier(Green) | Mini Caterpillar | Bear | Mummy Generator(Mummy Cat) | Lovely Mummy | Di-Cokka(Amadeus) | Special Amundsen | Ohumein-Conga(Green) | Ohumein-Conga (Red) | Skull Snail | Slug Armor ver.yagami | Slug Armor ver.kusanagi | Dangling Huge Ivy | Mummy (Awakening) | Huge Ivy | Vatn | Morden Robot | Red Goblin | Scotia Amundsen | El Dorado | Mummy Warrior | Aileen | Esther | Elysion | Jin | Aswang | Cleopatra | Giant Caterpillar | Mecha Allen | Iron | White Baby (Prototype) | Doctor(Brave Guerrier) | Big John | Jade John | Hi-Do(Amadeus) | Huge Hermit | Skull Hermit | Prototype Iron | Pharaoh's Arc | Tyrant Pharaoh | Sol Dae Rokker | Toschka Dalanue | Ghost Shiee | Amadeus Type:γ | Amadeus Type:α | Sol Dae Rokker (Anima)

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