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Earth Dimension is the two hundred and ninety-sixth Extra Ops and the sixty-eighth Marathon Extra Ops introduced in Metal Slug Attack.

Story[]

Out in an Invader facility, several Invaders are making modifications to Bersek. As Bersek is experimented on, he recalls fragments of his past with Louise and during battle as a brainwashed soldier for the Invaders. Bersek then suddenly has a moment of clarity before realizing that the Invaders accidentally damaged the microchip controlling him and feigns compliance to avoid suspicion.

In space, the Invaders task Ai Agate with monitoring his new combat capabilities. Agate tells him that they're going to Earth to attack a Regular Army base, which causes him to shudder. Agate briefly ponders if something is wrong before dismissing it. The mention of the Regular Army causes him to remember Louise, which he mutters. Agate wonders who Louise is before stating that Citrine is more interesting then him. He asks who Citrine is, which Agate states is her lovely friend and number 1 cutest creature.

Arriving on Earth, Bersek and Agate begin looking for the new weapon, brushing aside all opposition in their path. Eri orders the latest helicopter and digger machines to get ready, having Nadia go with her before tasking Louise with scouting and giving bombing orders. As the Regular Army brings out the big guns, Agate spots them and tells Bersek to prepare himself. Hearing his name, Louise inexplicably stands up and is relieved to see him alive and well, calling out his name although he is unable to hear her.

The duo destroy the new weapons, prompting Eri to call a retreat. Louise is still shocked at Bersek's return and does not move, prompting Agate to attack her. However, Bersek orders her to stand down and go back to the ship. Louise is relieved to see Bersek and begins crying, although Bersek wipes her tears away. He tells her that he had been kidnapped and brainwashed by the Invaders, but now having his own free will, decides to enact revenge by destroying them from the inside. Louise wants to go with him, but he refuses, although promising to return. She relents, but Eri notices that she's falling behind and notices her with Bersek. She fires at him, causing him to flee.

Back in space, Agate reveals that she had listened in on his conversation with Louise, prompting him to attack her. However, she does not move and states that she's rather interested in seeing how long he could deceive and fool the others, wishing to help him in his task as long as Citrine is not hurt. Seeing that she isn't lying, he relents and the two agree to keep the incident a secret. Bersek resolves to fulfill his task so he could return to Louise.

Introduced Units[]

Units Faction Rarity 
 Bersek(Awakening)  
    
 Special Ai Agate
 
    
 Regular Army Helicopter(S.P.A.R.R.O.W.S.)
 
    
 Digger Machine MK II

Expert Units[]

Expert
Units
Get Unit
Step Up
Crank

 60%  120%  200% 
    
Pre-Acquisition
 20%  35%  50%  75% 
Pick Up!!
 15%  20%  25%  30% 
    
Extra Ops
(Previous)

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

Stages[]

Normal[]

All stages contains 3 hidden P.O.W.s.

Stage Sortie Points Enemies Rewards
1 6
    
100
2 7
    
    
    
    
120
3 8
    
    
    
    
140
4 9
    
    
    
    
160
5 10
    
    
    
    
    
190
6 11
    
    
    
    
    
220
7 12
    
    
    
    
    
    
250
8 13
    
    
    
    
    
280
9 14
    
    
    
    
    
310
10 15
    
    
350

Hard[]

All stages contains 4 hidden P.O.W.s.

Stage Sortie Points Enemies Rewards
1 16
    
    
430
2 17
    
    
    
460
3 18
    
    
    
490
4 19
    
    
    
    
    
520
5 20
    
    
    
550
6 21
    
    
    
    
580
7 22
    
    
    
    
610
8 23
    
    
    
    
    
    
640
9 24
    
    
    
    
    
670
10 25
    
    
700

Hell[]

All stages contains 5 hidden P.O.W.s.

Stage Sortie Points Enemies Rewards
1 26
    
    
    
    
    
800
2 27
    
    
    
850
3 28
    
    
    
    
900
4 29
    
    
    
    
    
950
5 30
    
    
    
    
1000
6 31
    
    
    
    
    
1050
7 32
    
    
    
    
1100
8 33
    
    
    
    
1150
9 34
    
    
    
    
1200
10 35
    
    
1250

Milestones[]

Points Rewards Total Rewards
    
    
    
    
100 500,000 500,000
1,000
    
500,000 10
1,500 100,000 600,000 10
2,000
    
600,000 10 5
2,500
    
600,000 20 5
3,000
600,000 50 20 5
3,500
    
600,000 50 30 5
4,000 200,000 800,000 50 30 5
4,500
    
800,000 50 40 5
5,000
    
800,000 50 40 10
6,000
    
800,000 50 50 10
7,000 300,000 1.1M 50 50 10
8,000
    
1.1M 50 60 10
9,000 350,000 1.45M 50 60 10
10,000
    
1.45M 50 60 20
12,500
    
1.45M 50 80 20
15,000 400,000 1.85M 50 80 20
17,500
    
1.85M 50 80 10 20
20,000 500,000 2.35M 50 80 10 20
22,500
    
2.35M 50 80 10 10 20
25,000 600,000 2.95M 50 80 10 10 20
27,500
    
2.95M 50 80 10 20 20
30,000
    
2.95M 50 80 10 20 30
35,000
    
2.95M 50 80 20 20 30
40,000 700,000 3.65M 50 80 20 20 30
45,000
    
3.65M 50 80 20 30 30
50,000
    
3.65M 50 80 20 30 40
55,000
    
3.65M 50 80 35 30 40
60,000 750,000 4.4M 50 80 35 30 40
65,000
    
4.4M 50 80 35 45 40
70,000
4.4M 100 80 35 45 40
75,000 800,000 5.2M 100 80 35 45 40
80,000
    
5.2M 100 80 35 45 50
85,000 850,000 6.05M 100 80 35 45 50
90,000
6.05M 150 80 35 45 50
95,000
    
6.05M 150 80 45 45 50
100,000
Ultimate Communicator
6.05M 150 80 45 45 50
110,000
6.05M 200 80 45 45 50
120,000
    
6.05M 200 80 45 45 60
130,000
    
6.05M 200 80 45 50 60
140,000 1M 7.05M 200 80 45 50 60
150,000
    
7.05M 200 80 45 50 70
160,000
7.05M 250 80 45 50 70
170,000 1.2M 8.25M 250 80 45 50 70
180,000
    
8.25M 250 80 50 50 70
190,000
    
8.25M 250 80 50 50 80
200,000 1.5M 9.75M 250 80 50 50 80
210,000
    
9.75M 250 80 50 50 90
220,000
9.75M 300 80 50 50 90
230,000 2M 11.75M 300 80 50 50 90
240,000
    
11.75M 300 80 50 50 110
250,000
    
11.75M 300 80 50 60 110
260,000
Ultimate Communicator
11.75M 300 80 50 60 110
270,000
    
11.75M 300 80 50 60 130
280,000 3M 14.75M 300 80 50 60 130
290,000
14.75M 350 80 50 60 130
300,000
    
14.75M 350 80 50 60 150
310,000
    
14.75M 350 80 60 60 150
320,000 3.5M 18.25M 350 80 60 60 150
330,000
18.25M 400 80 60 60 150
340,000
    
18.25M 400 80 60 60 170
350,000
    
18.25M 400 80 70 60 170
360,000 4M 22.25M 400 80 70 60 170
370,000
22.25M 450 80 70 60 170
380,000
    
22.25M 450 80 70 60 190
390,000
    
22.25M 450 80 70 70 190
400,000
Ultimate Communicator
22.25M 450 80 70 70 190
410,000
22.25M 500 80 70 70 190
420,000
    
22.25M 500 80 70 70 210
430,000
    
22.25M 500 80 80 70 210
440,000 5M 27.25M 500 80 80 70 210
450,000
27.25M 550 80 80 70 210
460,000
    
27.25M 550 80 80 70 230
470,000
    
27.25M 550 80 80 80 230
480,000
Ultimate Monitor
27.25M 550 80 80 80 230
490,000
27.25M 600 80 80 80 230
500,000
    
27.25M 600 80 80 80 250
550,000 6M 33.25M 600 80 80 80 250
600,000
ARMOR(S.P.A.R.R.O.W.S.)
33.25M 600 80 80 80 250
650,000 6M 39.25M 600 80 80 80 250
700,000
ENGINE(S.P.A.R.R.O.W.S.)
39.25M 600 80 80 80 250
750,000
Ultimate Monitor
39.25M 600 80 80 80 250
800,000
MISSILE(S.P.A.R.R.O.W.S.)
39.25M 600 80 80 80 250
850,000 6M 45.25M 600 80 80 80 250
900,000
MISSILE(S.P.A.R.R.O.W.S.)
45.25M 600 80 80 80 250
950,000
Ultimate Monitor
45.25M 600 80 80 80 250
1M
WINDOW(S.P.A.R.R.O.W.S.)
45.25M 600 80 80 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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