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Re:Merge is the two hundred and twenty-seventh Extra Ops and the fifth Recapture introduced in Metal Slug Attack.

Story[]

Marco and Tarma are discussing about a new bacteria that the Martians are using on Earth. Fio chimes in and tells them that its name is Metal Fusioner No.223, and that it appears to be controlled by something else. She also tells them that it is weak to physical attacks. Marco dismisses her, telling her not to exhaust herself while on standby.

Tarma and Marco decide to send the AI division to tackle the enemy, hoping to get one new power from the test; Tarma states that they could get two, if they can use the bacteria.

Elsewhere, Alice begins starting up the new slug, while Heart asks why Alice is with her on the tank. Tarma tells her that they could get along with each other, while Marco asks Alice if she is sure of this. Alice states that she will follow Heart's instructions, while Tarma also explains to Heart that Alice has more battle experience.

Marco then authorizes the operation against the Metal Fusioner, ordering his men to collect samples that will fall off as the AI fight the massive machine. As Alice and Heart move in, they argue over the best way to attack the enemy.

In the first battlefield, Clone Abby confronts the two AI over their poor hit rate and gives them some of the armor as a joke of sorts. Clone Betty is confused as to what her sister is doing, while Heart steers her Slug out of the area. Alice wants to attack as they are in range, while the two clones simply look on.

On the second battlefield, the Gemini Twins stumble onto the battlefield, Black looking for something to eat. The pair quickly run into Fio, who offers them some sandwiches. They quickly accept and enjoy the food, before Eri scolds Fio for not focusing on the mission.

At the final battlefield, the AI find Pauline clearing away at the small shards left by the Metal Fusioner. Alice comments on how precise Pauline's mech is, having believed that operating it would take a lot of effort. Pauline then asks about how the AI can change forms to suit their creators, which causes Heart's mind to blank out as she thinks about Tarma, much to Alice's worry.

Alice and Heart learn about the concept of quarreling as they fight over the best decision, but ultimately defeat the Metal Fusioner. The operation is ultimately deemed a failure however, as the research team is unable to utilise the samples effectively. Marco then learns from Tarma that Alice and Heart are about to train with Fio, upon which he remembers that there is a budget meeting coming up soon. He arrives just as they begin the session, much to his horror.

Introduced Units[]

Units Faction Rarity 
    
 Alice & Heart
 
    
 Armored Fio
 
    
 Metal Fusioner No.223

Expert Units[]

Expert
Units
Get Unit
    
Fever 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 
    
Reward
 4%  6%  8%  10% 
Reward
 1%  2%  3%  4%  5% 
    
Reward
 1%  2%  3%  4%  5%

Stages[]

Normal[]

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


Stage Sortie Points Enemies Rewards
1 6
    
    
160
2 6
    
    
160
3 6
    
    
160
4 7
    
    
    
190
5 7
    
    
    
    
190
6 7
    
    
    
190
7 8
    
    
    
    
220
8 8
    
    
    
220
9 8
    
220
10 9
    
250

Hard[]

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


Stage Sortie Points Enemies Rewards
1 9
    
    
250
2 9
    
    
250
3 10
    
    
    
    
280
4 10
    
    
    
    
280
5 10
    
    
    
    
    
280
6 11
    
    
    
    
310
7 11
    
    
    
    
    
310
8 11
    
    
    
310
9 12
    
    
340
10 12
    
340

Hell[]

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


Stage Sortie Points Enemies Rewards
1 12
    
    
340
2 13
    
    
380
3 13
    
    
    
380
4 13
    
    
    
    
380
5 14
    
    
    
    
420
6 14
    
    
    
420
7 14
    
    
    
    
    
420
8 15
    
    
    
    
460
9 15
    
    
    
460
10 15
    
    
460

Large Battlefield A[]

Stage Sortie Points Enemies Rewards
Stolen Goods
9
    
    
    
    
    
    
    
3 250

3~7

1~3

1~3
12
    
    
    
4 340

6~12

2~4

2~4
15
    
    
    
    
    
    
    
    
5 460

10~18

3~7

3~7

Large Battlefield B[]

Stage Sortie Points Enemies Rewards
Stolen Goods
9
    
    
3 250

1~3

3~7

1~3
12
    
    
    
4 340

2~4

6~12

2~4
15
    
    
    
    
    
    
5 460

3~7

10~18

3~7

Large Battlefield C[]

Stage Sortie Points Enemies Rewards
Stolen Goods
9
    
    
    
    
    
3 250

1~3

1~3

3~7
12
    
    
    
    
    
4 340

2~4

2~4

6~12
15
    
    
    
    
    
    
5 460

3~7

3~7

10~18

Trade[]

Apart from the MSP, each purchase is one-time only.

Daily Update[]

Each stock can only be bought once a day, resetting at 12:00 JTC.

Items Red_Chest Blue_Chest Green_Chest
1 1 1
2 2 2
5 5 5

Metal Fusioner No.223[]

Items Red_Chest Blue_Chest Green_Chest  Quantity
    
200 200 200 1
Plasma Cannon(No.223)
80 80 80 3

Unit Parts[]

Items Red_Chest Blue_Chest Green_Chest  Quantity
50 50 50 1
    
15 15 15 1
15 15 15 1

Status Strengthening Items[]

Items Red_Chest Blue_Chest Green_Chest  Quantity
Stun Resistance 30 10 10 5
Poison Resistance 10 30 10 5
Special Attack Bind Resistance 10 10 30 5
Critical Resistance 30 10 10 5
Attack Enhancement 10 30 10 5
HP Enhancement 10 10 30 5

Other[]

Items Red_Chest Blue_Chest Green_Chest  Quantity
Radar
3 3 3 3
APLvMax
3 3 3 3
Reward Up
3 3 3 3
Mobile Satellite
3 3 3 3
Rewards Max
3 3 3 3

Limitless[]

Items Red_Chest Blue_Chest Green_Chest
15,000 MSP
15,000 MSP
1 1 1
60,000 MSP
60,000 MSP
4 4 4
150,000 MSP
150,000 MSP
10 10 10
300,000 MSP
300,000 MSP
20 20 20

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 15
12,500
    
1.45M 50 80 15
15,000 400,000 1.85M 50 80 15
17,500
    
1.85M 50 80 10 15
20,000 500,000 2.35M 50 80 10 15
22,500 2.35M 50 80 10 10 15
25,000 600,000 2.95M 50 80 10 10 15
27,500
    
2.95M 50 80 10 20 15
30,000
    
2.95M 50 80 10 20 20
35,000 2.95M 50 80 20 20 20
40,000 700,000 3.65M 50 80 20 20 20
45,000
    
3.65M 50 80 20 30 20
50,000
    
3.65M 50 80 20 30 25
55,000 3.65M 50 80 35 30 25
60,000 750,000 4.4M 50 80 35 30 25
65,000
    
4.4M 50 80 35 45 25
70,000
4.4M 100 80 35 45 25
75,000 800,000 5.2M 100 80 35 45 25
80,000
    
5.2M 100 80 35 45 30
85,000 850,000 6.05M 100 80 35 45 30
90,000
6.05M 100 1 80 35 45 30
95,000 6.05M 100 1 80 45 45 30
100,000
Ultimate Communicator
6.05M 100 1 80 45 45 30
110,000
6.05M 100 2 80 45 45 30
120,000
    
6.05M 100 2 80 45 45 35
130,000
    
6.05M 100 2 80 45 50 35
140,000 1M 7.05M 100 2 80 45 50 35
150,000
    
7.05M 100 2 80 45 50 40
160,000
7.05M 100 3 80 45 50 40
170,000 1.2M 8.25M 100 3 80 45 50 40
180,000 8.25M 100 3 80 50 50 40
190,000
    
8.25M 100 3 80 50 50 45
200,000 1.5M 9.75M 100 3 80 50 50 45
210,000
    
9.75M 100 3 80 50 50 50
220,000
9.75M 100 4 80 50 50 50
230,000 2M 11.75M 100 4 80 50 50 50
240,000
    
11.75M 100 4 80 50 50 55
250,000
    
11.75M 100 4 80 50 60 55
260,000
Ultimate Communicator
11.75M 100 4 80 50 60 55
270,000
    
11.75M 100 4 80 50 60 60
280,000 3M 14.75M 100 4 80 50 60 60
290,000
14.75M 100 5 80 50 60 60
300,000
    
14.75M 100 5 80 50 60 65
310,000 14.75M 100 5 80 60 60 65
320,000 3.5M 18.25M 100 5 80 60 60 65
330,000
18.25M 100 6 80 60 60 65
340,000
    
18.25M 100 6 80 60 60 70
350,000 18.25M 100 6 80 70 60 70
360,000 4M 22.25M 100 6 80 70 60 70
370,000
22.25M 100 7 80 70 60 70
380,000
    
22.25M 100 7 80 70 60 75
390,000
    
22.25M 100 7 80 70 70 75
400,000
Ultimate Communicator
22.25M 100 7 80 70 70 75
410,000
22.25M 100 8 80 70 70 75
420,000
    
22.25M 100 8 80 70 70 80
430,000 22.25M 100 8 80 80 70 80
440,000 5M 27.25M 100 8 80 80 70 80
450,000
27.25M 100 9 80 80 70 80
460,000
    
27.25M 100 9 80 80 70 90
470,000
    
27.25M 100 9 80 80 80 90
480,000
Ultimate Monitor
27.25M 100 9 80 80 80 90
490,000
27.25M 100 10 80 80 80 90
500,000
    
27.25M 100 10 80 80 80 100
550,000 6M 33.25M 100 10 80 80 80 100
600,000
Armor(No.223)
33.25M 100 10 80 80 80 100
650,000 6M 39.25M 100 10 80 80 80 100
700,000
Armor(No.223)
39.25M 100 10 80 80 80 100
750,000
Ultimate Monitor
39.25M 100 10 80 80 80 100
800,000
Leg(No.223)
39.25M 100 10 80 80 80 100
850,000 6M 45.25M 100 10 80 80 80 100
900,000
Leg(No.223)
45.25M 100 10 80 80 80 100
950,000
Ultimate Monitor
45.25M 100 10 80 80 80 100
1M
Antenna(No.223)
45.25M 100 10 80 80 80 100
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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