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This page relates to a Metal Slug Attack unit; for information about this character in the main series, see Samurai Infantry.

MSAUnitIron
MSAUnit Japonese Assault Force
Japonese Assault Force
Rarity
MSA rarity Normal
Faction
MSD faction Independent 24px Independent
AP cost
MSA dot I 90
MSA dot II 87
MSA dot III 84
MSA dot IV 81
MSA dot V 78
Optimal range
Short / Melee
Traits
Frontline Production
Suicide Attack
Knockback
Playable since
1.8.0
In-Game Description
"Red Japonese Soldier. His weapons are his sword, bombs and fear on the enemy."

The Japonese Assault Force consists of quick-moving units within Metal Slug Attack's "Independent" faction. Initially appearing as part of the Extra Ops titled Score Attack!!, these were largely unavailable until Another Story (barring later Daily Login rewards, and very rare POW Rescue rewards). Players can obtain parts by completing either of "Utopia"'s first two levels on any difficulty.

They are almost identical to regular Samurai Infantry, weak for their AP cost, and generally poor at combat.

However, if MSA Skill small + 4 is unlocked, they spawn at the front line - immediately appearing in front of the nearest enemy ground unit (or at their base, whichever is closer). Unlike Mummies and Dog Mummies (who share a similar ability), Japonese Assault Force soldiers drop from the air (essentially giving them a brief moment of invulnerability). Their low AP cost makes them hard to deal with at the start of a match, since enemy units can't harm the soldier until he takes his sword out. The W.Soldier is highly effective against them, as they're immune to their knockback capabilities.

If the player doesn't have the trooper (either the unit or unlocked MSA Skill small + 4), it is best to stick with the normal and dog mummies, as these units don't require any unique items. The Japonese Assault Force requires unique items for their skills, which can take a while to obtain.

Assault Force troopers are devastatingly effective when used to pin the enemy at their base long enough to deploy a Balor nearby.

Attacks

Close Range

Attribute pistol Japanese Sword (Spread): Relatively quick and powerful melee-range swing that damages all units in range.

Special

Attribute grenade Bomb (Spread): Hurls three powerful medium-range projectiles that follow a very high parabolic trajectory, landing on the ground and then rolling along it. Exploding on impact, they can easily destroy both aerial and ground enemies. If MSA Skill small + 2 is unlocked, these cannonballs may knock back enemies upon detonation.

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
1 400 440 484 532 585
10 600 660 726 798 878 Attribute grenade
Explosive
MSA resistance 3-Reduced Reduced
20 800 880 968 1064 1171
30 1000 1100 1210 1331 1464 Attribute fire
Incendiary
MSA resistance 4-No None
40 1200 1320 1452 1597 1756
50 1400 1540 1694 1863 2049 * HP might be increased by skills / items or buffs

Skills

MSA item I Grenade MSA item I Bomb MSA item III Bomb MSA Skill small + Strengthen Weapon

Strengthen all attack power by (10%, +0.5% each level).

MSA item I Bread MSA item I Radish MSA item III Bomb

MSA item II Shotgun MSA item I Armor Piercer MSA item III Bomb MSA Skill small + Mass Shot

When a Special Attack hits, there is a (10%, +0.5% each level) chance that the enemy will be knocked backwards.

MSA item I Bread MSA item I Shoes MSA item III Bomb

MSA item II Shotgun MSA item II Grenade MSA item IV Samurai Sword MSA Skill small + Super High-Powered Explosive

Strengthen power of dying attack by (40%, +2.5% each level).

MSA item I Bread MSA item II Pigeon MSA item IV Samurai Sword

MSA item III Super Grenade MSA item III Mine MSA item V Battle Hat MSA Skill small + Kamikaze

Production point will be at the frontline instead of the base. Strengthen Close Range Attack power by (10%, +0.5% each level).

MSA item II Apple MSA item II Monkey Thief MSA item V Battle Hat

MSA item IV Big Shotgun MSA item IV Red Pepper MSA item V Muramasa
MSA item III Fish MSA item III Diet Pill MSA item V Muramasa
Metal Slug Attack Units
MSA faction Regular Army Utan | Marco | Tarma | Eri | Fio | Slugnoid | Drill Slug | Hyakutaro | Bradley | Elephant Slug | Metal Claw | SV-001 | Soldier | Slug Gunner | Trevor | Nadia | Slug Flyer | Augensterm | Slug Armor | SV-Camel | Leona | Zombie Marco | Slug Copter | SV-001 Experimental | Regular Army Helicopter | Ralf | Ostrich Slug | Donkey Slug | Clark | Trevor (Mummy) | Protogunner | Slug Gigant | Everlasting Summer Eri | Everlasting Summer Fio | Special Nadia | Motorbike P.O.W. | Elephant Slug (Battery) | MS-Alice | "Cat Ears" Leona | Gimlet | Red Eye | Trevor(Monkey) | Nadia(Monkey) | Slug Mobile | Walter Rian | Motorbike P.O.W. Ver.2 | Whip | Slugnoid Type-B | Tyra Elson | Fat Marco | Fat Tarma | Christmas Eri | Heidern | Snowwoman Nadia | Donkey Slug (Eri) | Christmas Fio | Rootmars Slug | Fat Eri | Fat Fio | Drill Slug Ver.2 | Crazy Ralf | SV-001 Type-R(Marco) | Deformed Slug Gunner | Ostrich Slug (Clark) | 6000000taro | Valentine Nadia | Zombie Tarma | Zombie Trevor | MSA (Marco) | Pocket Marco | Jet Clark | Slugnoid Type-Ikari | Anna Wiese | Zombie Fio | Lightning Fio | Zombie Eri | Roberto Nicola | Rumi Aikawa | Special Trevor | 7000000taro | Super Devil Eri | Marco(Monkey) | Fio(Monkey) | Zombie Nadia | Madoka Aikawa | Nathalie Neo | Super Devil Marco | Alisa Stewart | Slug Gigant MK II | Airbone Metal Claw | 8000000taro | Super Devil Tarma | Everlasting Summer Madoka | Everlasting Summer Rumi | Everlasting Summer Nadia | Midori | Special Eri | Regular Army Helicopter MKII | Regular Rocket Bomb Soldier | Orochi Leona | Halloween Whip | Halloween Alice | Special Tarma | Mello | Christmas Midori | Rita | Special Marco | Christmastaro | Amber | Special Roberto | Perche | Special Fat Eri | Nikita | Valentine Fio | Reika | Special Fat Tarma | Golden Slug Gigant | Golden Slug Armor | Ami | Special Fio | Ball Slug | Protogunner Type-B | Molly | Special Fat Marco | M.D.P.S-Mz 3 | Special Mello | 9000000taro | Golden Slug Gunner | Golden Bradley | Louise | Everlasting Summer Rita | Leona Ver.Heroines | Elephant Slug(Ice) | Ostrich Slug(Eri) | Ulala | Special Perche | Gisee | Halloween Nikita | 10000000taro | Donkey Slug(Fio) | Ralf's Augensterm
MSA faction Rebel Army Rebel Infantry | Di-Cokka | Nop-03 Sarubia | Karn | Shielded Soldier | Allen O'Neil | T-2B Melty Honey | LV Armor | M-15A Bradley | Rebel Rifleman | Bazooka Soldier | Gatling Soldier | Girida-O | Donald Morden | Shoe | Iron Iso | Iron Nokana | R-Shobu | Hi-Do | Rocket Bomb Soldier | Mortar | Jupiter King | Hairbuster Riberts | Bikers | Patrol Robot | Paratrooper | Rebel Gigant | MH-6 s | The Keesi II | Regimental MH-6 s | Mini Jupiter King | Jupiter King MK II | Airborne Melty Honey | Iron Sentinel | Big Shiee | Arabian Fighter | Arabian Soldier | Camel Rider | Abul Abbas | F.Rebel Infantry | Assy Nero | Kraken | Bull Drill | R-Shobu Ver.F | MH-6 s Ver.F | Crablops | Gen.Morden Ver.Di-Cokka | Allen Jr. | Cabrakan | The Keesi III | Formor | Abigail | Emain Macha | Subway | Allen O'Neil (Wrath) | Union | Scrap Cannon | Elite Arabian Soldier | Tani Oh | Iron Nokana MK II | W.Soldier | Bodyguard (Rebel Infantry) | Bodyguard (Shielded Soldier) | Bodyguard (Rebel Rifleman) | Beatriz | Iron Cab | Eaca-B | R.R-Shobu | Vita | Rebel Infantry (Wrath) | Red Devil Morden | Parachuetruck | Sergeant Drill | Balor | Mortar (Wrath) | Spacey Nokana | Rebel Gigant MK II | Iron Iso II | Iron Vermilion | Dararin Dara Dara | Navy | Special Beatriz | Flying Tara+ | Hodumi+ | Girida-O Ver.F | Nova | Big Gate | Crablops Type-F | Rebel Walker | Everlasting Summer Abigail | Everlasting Summer Beatriz | Drache Macha | Rebel Rifleman(Wrath) | Bazooka Soldier(Wrath) | Shielded Soldier(Wrath) | Tiger Macha | Morden Bus | Destrade | Dragon Nosuke+ | Patrol Robot+ | Shizuka | Special Abul Abbas | Rapid | Special Vita | Huracan | Assy Nero MKII | Elite Arabian Fighter | Elite Arabian Camel Rider | Aisha | Shoe MK II | Karn MK II | Cabrakan MK II | Cabrakan Pod (Individual) | Tani Oh MK II | Di-Cokka MK II | Special Allen Jr. | The Keesi III+ | Formor+ | Julia | Kraken MK II | F.Bazooka Soldier | Chloe | Christmas Nova | Golden Morden | Golden Bikers | Izabella | Special Navy | Golden Nosuke | Golden LV Armor | Frozen Cab | Bodyguard(Rocket Bomb Soldier) | Rogue Gigant | Gatling Soldier(Wrath) | Sister Nokana | Bodyguard(Mortar) | Golden Jupiter | Golden Iso | Grazia | Special Destrade | Red Sergeant Drill | Nop-03 Sarubia MK II | Loretta | Special Huracan | Hi-Do MKII | Girida-O MKII | Big Shiee MKII | Scrap Cannon MKII | Edda | Special Aisha | Cabrakan MK III | T-2B Melty Honey MK II | Dion | Special Izabella | Sky Jupiter King | Mini Jupiter King MK II | Norah | Everlasting Summer Nova | Hairbuster Riberts MK II | Dararin Dara Dara MK II | Emma | Special Shizuka | Golden Nokana | Golden Di-Cokka | K-O3 Coupled Armored Vehicle | Anti Air-Craft | Vicky | Halloween Beatriz | Crablops Type-Lower | Rebel Walker MK II | Abigail (Subjugation Tactics) | Special Chloe | Dolores | Special Julia
MSA faction Ptolemaic Army Hover Units | Guerrilla | Special Force | Gunner Unit | Shielded Guerrilla | Bazooka Guerrilla | Metal Rear | Sniper | Claw Unit | Girida-O Ver. P.M. | Di-Cokka Ver. P.M. | Special Force (Rider) | Black Hound | Sarubia Ver. P.M. | Ptolemaic Slug | Guerrilla Mortar | Stone Turtle | Bradley Ver. P.M. | R-Shobu Ver. P.M. | MG Unit | Commander | Hover Vehicle | Ptolemaios | Masked Soldier | Dragunov | Flying Tara Ver. P.M. | Sand Marine | A.P.C. (Special Force) | Yoshino | Elite Hover Unit | Caroline | Jupiter Queen (P.M.) | MH-6 s VER(P.M) | Augensterm Ver(P.M) | Ptolemaios (Curse) | Masked Soldier (Curse) | Guerrilla (Captain) | Metal Rear EX | Ptolemaic Slug EX | Special Dragunov | Veronica | Special Caroline | Emerald Turtle | Commander (Navy) | Sisilia | Everlasting Summer Yoshino | Deep Sand Marine | Everlasting Summer Dragunov | Sarubia II Ver.P.M | Caro's Augensterm | Custom Vehicle | Towa | ShootingRay | Union 03 Ver.P.M | Elite Sniper | Mira | Halloween Caroline | Ptolemaios (Abyss) | Gunner Unit(Abyss) | Simon | Special Sisilia | Anastasia IV | Miharu | Christmas Veronica | Union 01 Ver.P.M | Black Hound Type-R | Chunyan | Believer (Master) | Believer (Elite) | Believer (Soldier) | Space Metal Rear | Space MG Unit | Owen | Special Mira | Union 02 Ver.P.M | Special Force (Rope) | Dragunov Ver.Rebellion | Special Towa | Golden Sand Marine | Golden Claw Unit | Sho | Special Yoshino | ShootingRay Ver.Rebellion | Bradley Ver.Rebellion | Maria | Everlasting Summer Miharu | Towa's Augensterm | Girida-O Ver.P.M + | Beecham | Special Chunyan | Golden Turtle | Golden Elite Hover Unit | Damian | Halloween Simon | Land Blowfish | Shielded Guerrilla (Captain) | Sky Jupiter Queen(P.M.) | Special Force (Custom Bike) | Achetto | Special Anastasia IV
MSA faction Aliens Mars People | Zombie (Woman) | Hopper Mecha | Mars Mecha | Zombie (Fattish Man) | Zombie (Rebel Soldier) | Tar Man | Ring Laser Mecha | Zombie (Man) | Monoeye | Clone Fio (Zombie) | Clone Eri | Mini U.F.O. | Scientist (Zombie) | Smasher | Crab-Tank | Vanguard | Invader | Hunter Walker | Brain Robot | Dai-Manji | Winged Invader | Mars People Cadre | Rugname | Flying Core | Professor | Tar Man (Red) | UFO Invader | Flying Parasite | Rootmars | Halloween People | Odette | Golden Hunter Walker | Mars People Pocket | Party People Elite | Dark Monoeye | Mars People Elite | Rugname X | Mars Brain Robot | Ring Laser Mecha(Red) | Mars People (Neo) | Annette | Vanguard(Type-A) | Lydia | Mars Professor | Tiny UFO Type:A | Percier | Clone Fio | Monoeye UFO | Clone Abby | Nowan | Everlasting Summer Odette | Dai-Manji (Secret Ver.) | Mini U.F.O. (Secret Ver.) | Halloween Percier | Mars People Officer | Clone Tarma | Clone Betty | Mars People Tank | Mars People Attacker | Mars People Healer | Schwarz Metzelei | Christmas Annette | Rootmars X | Party People X | Ariadna | Special Professor | Fedeln Metzelei | Special Nowan | Cocoon Betty | Ring Laser Mecha(Blue) | Rillacle | Special Odette | Dai-Manji(Ver.Gold) | Mini U.F.O(Ver.Gold) | Gemini White & Black | Clone Marco | Flying Shelt | Ravenous Invader | Halle | Special Clone Abby | Great Mother | Great • Crab-Tank | Franke | Giant Hunter Walker | Smasher Returns | Mars Gigantalos | Special Clone Betty | Snow Monoeye | Zombie(Fattish Man Red) | Mars People Officer(COO) | Clone Tarma(Zombie) | Bonny | Special Black
MSA faction Independent Chowmein-Conga | Ohumein-Conga (Red) | Sasquatch | Mutated Soldier | Man Eater | Mummy | Dog Mummy | Samurai Infantry | Samurai Tanks | Samurai Plane | Big Snail | Giant Caterpillar | Maggot | Flying Killers | Native | Dangling Snail | Bat | Hunged Mummy | Bear | Huge Locust | Mecha Allen | Prototype Iron | Chariot | Pharaoh's Arc | Mummy Warrior | Mummy Cat | Scotia Amundsen | Red Goblin | Japonese Assault Force | Sol Dae Rokker | Morden Robot | Mini Hermit | Pirate Assault Soldier | Pirate Soldier | El Dorado | Amadeus Type:α | Amadeus Robot | Researcher | Slug Armor ver.kusanagi | Slug Armor ver.yagami | Big John | Hazmat Soldier | Native (Bird) | Iron | Vatn | Halloween Soldier | Huge Hermit | Mini Caterpillar | Toschka Dalanue | Sol Dae Rokker (Anima) | Amadeus Corporal | Huge Ivy | Cleopatra | Tyrant Pharaoh | Mummy Generator(Mummy Cat) | Lovely Mummy | White Baby (Prototype) | Mummy (Awakening) | Samurai Infantry (Wrath) | Ohumein-Conga(Green) | Jin | Ghost Shiee | Pirate Soldier(Ghost) | Amadeus Type:γ | Di-Cokka(Amadeus) | Hazmat Soldier(Green) | Jade John | Hi-Do(Amadeus) | Amadeus Soldier (Shield) | Aileen | Special Amundsen | Elysion | Skull Snail | Skull Hermit | Esther | Aswang | Dangling Huge Ivy | Doctor(Brave Guerrier) | Toschka Dalanue II | Amadeus Rifleman | Amadeus Bazooka Soldier | Sea Satan+ | Sarubia (Amadeus) | Sol Dae Rokker(Origin) | Special El Dorado | Elena | Licht | Prototype Iron II | Amadeus Parachute Soldier | Poison Caterpillar | Poison Maggot | Hairbuster Riberts (Amadeus) | Elite Researcher | Iron II | Bradley(Amadeus) | Tyrant Warrior | Dog Mummy(Awakening) | Agalia | Special Vatn | Doctor Type: AI | Amadeus Rocket Bomb Soldier | Cleopatra's Arc | Lovely Hunged Mummy | Alma | Special Aileen | Iron Fortress | Valerian Bear Viola | Valerian Bear Rosa | Valerian Bear Bubu | Real Jhon | Mutated Soldier(Neo) | Ichima | Special Red Goblin | Sea Satan II | Amadeus Mortar | HMT | Arsinoe | Golden Amadeus Type:AI | Golden Morden Robot | First Baby | Special White Baby(Prototype) | Evol Hermit | Flying Killers Type:SSP. | Everlasting Summer Elena | Teresa | Incognito Aswang | Karn(Amadeus) | Shoe(Amadeus) | Kelly | Sol Dae Rokker Arche | Man Eater Arche | Runaway White Baby | Halloween Alma | Golden Fortress | Golden Rosa | Vatn Ver.Crimson | Incognito Agalia | Cyclobster | Sky Jellyfish