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Omen is the two hundred and thirtieth Extra Ops and the fifty-fourth Rare Boss introduced in Metal Slug Attack.

Story[]

Navy is overseeing the excavation of powerful energy alongside Vita and Nova. She is then informed that they are under attack by the Ptolemaic Army. Refusing to allow the enemy to claim the powerful energy source, she orders Vita and Nova to help out at the front while she tries to remotely detonate the energy.

Arriving at the battlefield, the two are met with numerous slain Rebel personnel, who are being decimated by the Ptolemaic Army's newest Laser Units. Vita snaps at the sight of death and refuses to dodge incoming attacks, much to Nova's concern.

Vita proceeds to go berserk and destroys the enemy without regard to her own safety. Nova contacts Navy and tells her of this, who realizes that she has gone into her "annoying" mode and allows Nova to knock her back to her senses. Nova does so by snapping Vita's prosethic leg, who tells her that the scene of death reminded her of the time before she became a cyborg, and that she wanted to bring the dead with her.

Returning to base, Navy proceeds to operate on Vita. A few hours later, several worried Rebel soldiers arrive, thanking her for saving them and are worried about her own safety.

Back at the battlefield, Mira is left unfazed by the explosion and absorbs the surrounding anima. Remarking of the many futures that she saw from the Omen, she wonders if there were more hidden, believing that she could give her father a good present if she could find out.

Introduced Units[]

Units Faction Rarity 
 Vita(Subjugation Tactics)  
    
 Veteran Nova
 
    
 Sand Marine EX
 
    
 Laser Unit

Expert Units[]

Expert
Units
Get Unit
Box Crank
 60%
 x6
 120%
 x8
 200%
 x10 
    
Pre-Acquisition
 20%
 x2
 35%
 x3
 50%
 x4
 75%
 x5 
Pick Up!!
 15%
 x2
 20%
 x2
 25%
 x2
 30%
 x2 
Extra Ops
(Previous)

 10%
 x2
 15%
 x2
 20%
 x2 
    
Rare Boss
 6%  9%  12%  15% 
    
Reward
 4%  6%  8%  10% 
Reward
 1%  2%  3%  4%  5% 
    
Reward
 1%  2%  3%  4%  5%

Stages[]

Normal[]

Stage Sortie Points Enemies Rewards P.O.W.s
1 6
3 130
2 7
    
    
3 160
3 8
    
    
3 190
4 9
    
    
    
4 220
5 10
    
4 250
6 11
    
4 280
7 12
    
    
    
4 310
8 13
    
    
    
    
    
4 340
9 14
    
    
    
    
    
    
4 370
10 15
    
    
4 400

Rare Boss[]

Stage Sortie Points Enemies Rewards P.O.W.s
1 6
    
    
    
4 195
2 7
    
    
    
    
4 240
3 8
    
    
    
    
    
4 285
4 9
    
    
    
    
    
4 330
5 10
    
    
    
    
4 375
6 11
    
    
    
    
4 420
7 12
    
    
    
4 465
8 13
    
    
    
    
    
4 510
9 14
    
    
    
    
4 555
10 15
    
    
    
    
4 600

Milestones[]

Points Rewards Total Rewards
    
    
    
100 50,000 50,000
200 50,000 20
400 25,000 75,000 20
600
    
75,000 20 5
800 25,000 100,000 20 5
1,000
100,000 50 20 5
1,500 100,000 50 40 5
2,000 65,000 165,000 50 40 5
2,500 65,000 230,000 50 40 5
3,000
    
230,000 50 40 10
3,500
    
230,000 50 40 20 10
4,000 230,000 50 60 20 10
4,500 100,000 330,000 50 60 20 10
5,000 100,000 430,000 50 60 20 10
6,000
    
430,000 50 60 20 15
7,000 430,000 50 80 20 15
8,000 120,000 550,000 50 80 20 15
9,000
    
550,000 50 80 40 15
10,000 150,000 700,000 50 80 40 15
12,000 150,000 850,000 50 80 40 15
14,000 250,000 1.1M 50 80 40 15
16,000 1.1M 50 100 40 15
18,000
    
1.1M 50 100 40 20
20,000 250,000 1.35M 50 100 40 20
22,000 300,000 1.65M 50 100 40 20
24,000
    
1.65M 50 100 60 20
26,000
    
1.65M 50 100 60 25
28,000
    
1.65M 50 100 80 25
30,000
1.65M 100 100 80 25
35,000
    
1.65M 100 100 100 25
40,000
1.65M 150 100 100 25
45,000 500,000 2.15M 150 100 100 25
50,000
    
2.15M 150 100 100 30
55,000
2.15M 200 100 100 30
60,000
    
2.15M 200 100 100 20 30
65,000 800,000 2.95M 200 100 100 20 30
70,000
2.95M 250 100 100 20 30
75,000
    
2.95M 250 100 100 20 35
80,000
    
2.95M 250 100 100 30 35
85,000 1M 3.95M 250 100 100 30 35
90,000
    
3.95M 250 100 100 30 40
95,000
3.95M 300 100 100 30 40
100,000
Ultimate Grenade Launcher
3.95M 300 100 100 30 40
105,000
    
3.95M 300 100 100 40 40
110,000
    
3.95M 300 100 100 40 45
115,000 2M 5.95M 300 100 100 40 45
120,000
    
5.95M 300 100 100 40 50
125,000
5.95M 350 100 100 40 50
130,000 2.5M 8.45M 350 100 100 40 50
140,000
    
8.45M 350 100 100 40 60
150,000
    
8.45M 350 100 100 50 60
160,000 3M 11.45M 350 100 100 50 60
170,000
    
11.45M 350 100 100 50 70
180,000 3.5M 14.95M 350 100 100 50 70
190,000
14.95M 400 100 100 50 70
200,000
    
14.95M 400 100 100 50 80
210,000 14.95M 400 100 100 50 5 80
220,000
Ultimate Grenade Launcher
14.95M 400 100 100 50 5 80
230,000
14.95M 450 100 100 50 5 80
240,000
    
14.95M 450 100 100 50 5 90
250,000 14.95M 450 100 100 50 10 90
260,000 4.5M 19.45M 450 100 100 50 10 90
270,000
19.45M 500 100 100 50 10 90
280,000
    
19.45M 500 100 100 50 10 100
290,000 19.45M 500 100 100 50 15 100
300,000 5M 24.45M 500 100 100 50 15 100
310,000
24.45M 550 100 100 50 15 100
320,000
    
24.45M 550 100 100 50 15 110
330,000 24.45M 550 100 100 50 20 110
340,000
Ultimate Grenade Launcher
24.45M 550 100 100 50 20 110
350,000
24.45M 600 100 100 50 20 110
360,000
    
24.45M 600 100 100 50 20 120
370,000 24.45M 600 100 100 50 30 120
380,000 6M 30.45M 600 100 100 50 30 120
390,000
30.45M 650 100 100 50 30 120
400,000
    
30.45M 650 100 100 50 30 140
410,000 30.45M 650 100 100 50 40 140
420,000
    
30.45M 650 100 100 50 40 160
430,000 30.45M 650 100 100 50 50 160
440,000
    
30.45M 650 100 100 50 50 180
450,000 30.45M 650 100 100 50 60 180
460,000
    
30.45M 650 100 100 50 60 200
470,000 30.45M 650 100 100 50 70 200
480,000
    
30.45M 650 100 100 50 70 220
490,000 30.45M 650 100 100 50 80 220
500,000
    
30.45M 650 100 100 50 80 250
550,000
Ultimate Whip
30.45M 650 100 100 50 80 250
600,000
Subsand Tank(EX)
30.45M 650 100 100 50 80 250
650,000 8M 38.45M 650 100 100 50 80 250
700,000
Subsand Crawler(EX)
38.45M 650 100 100 50 80 250
750,000
Ultimate Whip
38.45M 650 100 100 50 80 250
800,000
Subsand Bullet(EX)
38.45M 650 100 100 50 80 250
850,000 8M 46.45M 650 100 100 50 80 250
900,000
Subsand Bullet(EX)
46.45M 650 100 100 50 80 250
950,000
Ultimate Whip
46.45M 650 100 100 50 80 250
1M
Subsand Missile(EX)
46.45M 650 100 100 50 80 250
Extra Opsv t e
Mars Attack Jupiter King's Extra Ops Mummy's Score Attack!! Ptolemaic Attack Pirates Attack Golden Soldier Black Future CODE : ASSAULT The King of Weapons
Metal Slug Alice Zombie Parade Alien vs. Morden Boy Memories Sand Locker Halloween Train Agent Sally Mutation War Food Army! Destroy the Tower
Invader Girl Operation Ikari Santa Trap Merry Christmas! Queen's Battle Flying Ace Crazy Drive!! Food Army! 2nd X Day Pharaoh Rebirth
Chocolate of the Dead Signal Red Power of New Versions Signs of Curse Tough & Cool Wild Edge Pirate's Ghost Amadeus Revenge Snatch Wars Jungle Monkeys
Rider's High Green Monster Mad Scientists Snatch Wars Season 2 Break In The Shell Maximum Evolution Next One Snatch Wars Season 3 Clash of the Worlds Bicycle Maiden
Glow in the Dark Snatch Wars Season 4 Double Face Last Resort No Limit Rising Iron Snatch Wars Season 5 Silent Assassin Supply Lines Eternal Way
Snatch Wars Season 6 Dancing Brave Blood Runaway Royal Identity Cross Over Fate Snatch Wars Season 7 White Breath Out of Control Same Direction Snatch Wars Season 8
Time Collision Fall of Disaster United Front Snatch Wars Season 9 Sadistic Emotion Top Prospect Snatch Wars Season 10 United Front the 2nd Revival of Intention Hero of Justice
Snatch Wars Season 11 Kung Fu Guru United Front the 3rd Butterfly Disaster Advance of Fire Beast Power United Front the 4th Protection of the Fortress Fist Invasion Fire Inhibition
United Front the 5th Best Partner One Mind First Rebellion United Front the 6th Growing Ninja Encounter of Unknown Try Line 1st United Front the 7th Hot Trap
Sky King Theory of Evolution Try Line 2nd Dark Invitation United Front the 8th Tropical Battles Strange Town Auto Battle United Front the 9th Begin Training
Try Line 3rd Destruction and Regeneration Unknown Snow United Front the 10th Sword of Allegiance Try Line 4th Code of Conduct United Front the 11th Escape Plan Try Line 5th
Great Flower United Front the 12th Christmas Wishes Daughter of the Dusk Ace United Front the 13th OneMan Army Try Line 6th The Successor United Front the 14th
Bloom Disaster Guardians of Morden United Front the 15th Killer Scythe Try Line 7th On the Bad Road Pain of My Heart United Front the 16th Memories of Mirage Try Line 8th
Material Affection United Front the 17th Tiny Super Girl Like a Bird Ancient Code United Front the 18th Mad Assault Crew Try Line 9th The Divine Move United Front the 19th
Shinobi Hunter Task Force 1st ACE in ADVERSITY United Front the 20th Freestyle Try Line 10th Under City United Front the 21st Punk! Punk! Punk! Task Force 2nd
Mars Sweeper United Front the 22nd Scary Halloween Party Try Line 11th Task Force 3rd Four Samurai United Front the 23rd Gluttony of Disaster Task Force 4th From Me to You
Try Line 12th Return of Hope United Front the 24th Secret In My Eyes Task Force 5th The Moth Try Line 13th Beautiful Fighter United Front the 25th White Combat
Task Force 6th Silent Evolution United Front the 26th Returning Task Force 4th Jumper Try Line 14th Insanity Ahead Task Force 7th Absolute Defender United Front the 27th
Lunatic Providence Try Line 15th Blue Fire Task Force 8th All Creation United Front the 28th The Executioner Try Line 16th United Front the 29th Freedom
Guardian of the City Justice of Summer Task Force 9th If/The Beginning Portless Communication Lonely Mate Try Line 17th United Front the 30th Girls be Ambitious Task Force 10th
Halloween Forest Try Line 18th United Front the 31st Space War Task Force 11th Perfect Doctor Blue Christmas Pirate Christmas Try Line 19th 2021 New War!!
United Front the 32nd Task Force 12th Sand Rabbit Try Line 20th Because of Love United Front the 33rd Re:Merge Scrap Brain Try Line 21st Omen
Shakety Empty United Front the 34th Stray Ghost Task Force 13th One Cut Try Line 22nd Accidental Coincidence United Front the 35th Freedom Mission Task Force 14th
Burning Diamond United Front the 36th Task Force 15th Ugly Friend Try Line 23rd Road to Everlasting Summer My Beach Task Force 16th Gray Tiger United Front the 37th
Cat Alyst Search & Destroy 1st Deep Water Task Force 17th Sand Dance Trick or Treat Search & Destroy 2nd United Front the 38th My Little Forest Task Force 18th
Dark Mirror United Front the 39th Silence Snow Task Force 19th Great Fortune United Front the 40th Resurrecting the Giant Search & Destroy 3rd Brain Evolution Chocolate Race
Task Force 20th Last Ambition United Front the 41st Horrible Devil Search & Destroy 4th Easter Courage Task Force 21st United Front the 42nd Genius or Fool Search & Destroy 5th
The Red Strangers Double K Runaway Bacteria Task Force 22nd Lost Memories United Front the 43rd Runaway Blood Task Force 23rd Ominous Art Muscle Ball
Task Force 24th Flat Nose Soldier United Front the 44th Space Monster Task Force 25th Earth Dimension Fly to The Future Protective Chain Task Force 26th
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