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Metal Gear Ac!d 2

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Metal Gear Ac!d
Release Date: 2006
Developer: Konami Computer Entertainment Japan
Publisher: Konami
Platforms: PSP
Genre: Turn Based Strategy

Metal Gear Acid 2, (stylized as Metal Gear Ac!d 2) is a turn-based stealth-strategy card game spin-off in the Metal Gear series for the PSP and a sequel to the original Metal Gear Ac!d.

The game notably uses a Cell-Shaded style and is considerably wackier than the original Ac!d, to the point where some returning weapons from the MSX games are still sprites instead of upgraded to 3D models like the original Ac!d, in addition cards in Ac!d have been heavily re-worked and re-balanced. (MGS3 have went from late-game power weapons to early game weaponry and several weapons have drastically different stats compared to the original Ac!d.)

The plot revolves around a now amnesiac Snake being forced by FBI Agent Dalton to investigate Private Arms Company SaintLogic, along the way he teams up with Venus, who takes the role of Teliko from the first game as Snake's partner character.

The game features the ability to now upgrade cards, for various weapons this involves changing the name (Such as the M1911 becoming the M1911A1 or the USP becoming a HK P8) to similar guns generally from the same manufacturer but in-game there is no model change for any upgraded cards, just stats, name and the card's description changing.

There are also now technically 8 card packs, though this is just that each pack gets an upgraded version in NG+ with access to more powerful rarer cards. (Most of which are named after the Substance, Subsistance and Integral re-releases of those games, with the exception of the Chronicles pack becoming "Chronicles Unlimited".)

The following weapons appear in the video game Metal Gear Ac!d 2:


Mk 22 Mod 0 "Hush Puppy"

The Mk 22 Mod 0 "Hush Puppy" from MGS3 re-appears as the Mk22. Snake starts the game with it in his arsenal. The Hush Puppy and the M1911A1 have suppressed sound effects, but no visible suppressor, while normally non-lethal, the upgraded version (MK22+) gains the ability to do damage.

Despite Ac!d 2's dialogue mentioning that Snake starts his mission unarmed, Snake starts with the Mk22, Claymore mines, the MGS3 Survival Knife and the Fury (which gives you a flamethrower) cards in his deck.

MGC Mk 22 Mod 0 - 9x19mm Parabellum.
Snake attacking a SaintLogic Guard with his Mk22.


The M1911A1 from MGS3 that was heavily customized re-appears in Ac!d 2. It makes silenced sounds despite no suppressor being mounted on the weapon and deals extra damage if an alert hasn't been raised. The original non-customized M1911A1 from MGS3, while unusable, appears in Venus' holster. The Colt Snake Match variant used in MGS3 is also used in the game.

The M1911A1, Type 17 and AK-47 are all initially obtained from fixed non-random pick-ups in the first mission, making them and the MK22 Snake's starting weaponry.

Colt M1911A1 - .45 ACP
Snake aims his M1911A1 at a guard. Ac!d 2 now goes into an over the shoulder camera when aiming weapons.
A results screen after a cutscene shows a close-up of Venus' M1911A1.
Canis Customs Colt Snake Match 1911.

Shansi Type 17

The Shansi Type 17, a Chinese copy of the Mauser C96 and EVA's signature weapon, reappears from MGS3. But it's inaccurately called the "C96". When upgraded, the card's name turns into the "Type-17 Pistol", when upgraded to the "Type-17", it uses the same 7.62mm calliber as the 7.62mm rifles. (Such as the AK-47)

Shansi Type 17 - .45 ACP
Snake fires his C96 at a SaintLogic guard.
Snake aims his C96 on a curved corner. The corners can be used to ricochet bullets around corners or into the back/side of an enemy for extra damage as opposed to shooting them from the front.

Baikal 442

The "Makarov PM" from MGA reappears as a player-usable weapon,the simplifications to the model in-game (such as a less round trigger guard) that means it unintentionally resembles a Baikal 442 more than an actual Makarov remain. (As does an actual Makarov from MGS2 on the Card Image.) It uses a generic "9mm" caliber shared with weapons such as the MP5, it is called the "Makarov" initially then the "PMM" after being upgraded.

Venus starts with the Makarov, USP, M4A1 and OICW in her deck and Saint Logic Researcher Michiko Takiyama aims one at Snake when first meeting him.

Baikal 442 - 9x18mm Makarov
Venus and Snake aim their Baikal 422/Makarov Hybrids. (With a Makarov texture but a Baikal model.)
Takiyama aims her Makarov at Snake in their first meeting.

Heckler & Koch USP

The Heckler & Koch USP from MGA returns, unlike the original Ac!d, the USP in Ac!d 2 is chambered in 9mm just like MGS2. When upgraded, it is now called the "P8" but the model remains unchanged, Liquid in Arena mode uses the P8.

Unlike Ac!d 1, the Lasersighted USP is treated as suppressed despite visually lacking a suppressor.

Heckler & Koch USP - 9x19mm
In the Bonus "Arena" mode, (Where the player can fight previous Metal Gear bosses to grind), Venus aims her USP at Vamp.
A SaintLogic Guard fires his USP at Snake.

Heckler & Koch Mark 23 Phase II Prototype

The SOCOM returns from the original Ac!d.

Airsoft Heckler & Koch Mk 23 Phase II Prototype (note front cocking serrations, deleted from production models) with Tokyo Marui replica of a Knight's Armament suppressor and prototype Laser Aiming Module - (fake) .45 ACP
Venus aims her SOCOM in a cutscene, amusingly there is alot more in-game time before the player can actually acquire a SOCOM as this cutscene is relatively early on and the MGS1 pack is the last card pack unlocked.
Teliko from Ac!d 1 returns as part of the final matchup in Arena mode. She also uses the SOCOM.

Beretta M9

The simplified Beretta M9 from the original Ac!d returns, now it deals a small amount of damage and can even be upgraded to increase it. This makes it the first M9 in a 3D Metal Gear game where the player can kill enemies directly with it if the player wishes.

The Lasersighted version of the unsuppressed M9 is treated as suppressed. (with only the M92F regular version being correctly treated as unsupressed.)

Beretta 92F with Knight's Armament XM9 suppressor and slide lock lever - 9x19mm
Venus using the tranquilizer M9 to make a guard's nap permanent.
Venus using the original M9 (Identifed in promotional material/manual) from Metal Gear 1 in combat in all its sprite glory.

Fabrique Nationale Five-seveN

The FN Five-seveN returns from the original Metal Gear Ac!d.

FN Five-SeveN (Original Model) - 5.7x28mm. (This model is no longer produced.)
Snake with the Five-SeveN.


The EZ-Gun makes it first appearance in the game aside from MGS3/4. It's unlocked by progressing far enough on the Easy difficulty of Arena mode. It's chambered in .45ACP, is silenced and halves incoming damage while equipped but halves the amount of points earned from that mission. The EZ-Gun tranquilizes enemies with a 20% chance. It can be upgraded into 40%.

The weapon is explicitly based on the FP-45 Liberator.

The FP-45 Liberator Pistol - .45 ACP
Non-firing model of the "EZ Gun" by Kagerou Works
Snake holding the upgraded EZ-Gun.
The left side of the EZ-Gun.

Glock 18C

Fatman's Glock 18C from MGS2 shows up in the game as a NG+ Substance card but with the extended magazine removed. The card's icon is a real world image of a Glock 17 (the only weapon card in the game to use a real life image instead of a render), the weapon is called the "Glock 17" initially then "Glock 18" when upgraded.

Glock 17 - 9x19mm Parabellum
Glock 18 (3rd Generation) - 9x19mm Parabellum
Glock 18C - 9x19mm
The weapon's card.
Venus aims the Glock at Vamp.
A different angle of the Glock firing, you can see the keyhole opening of the Glock 18C on the slide.

IMI Desert Eagle Mark XIX

The Desert Eagle Mark XIX returns from the original Ac!d. It's still a high damage, but low accuracy weapon.

Desert Eagle Mark XIX - .50 AE.
Venus aims her Desert Eagle at Liquid. The DE now has a base hit chance of 40% at point blank range.


Single Action Army

The Single Action Army returns from the original Ac!d, it can still be used by Snake and Venus and it is used by Revolver Ocelot in Arena mode.

Colt Single Action Army with 5.5" barrel known as the "Artillery" model. The most common of the SAA revolvers as it is just the right length. - .45 Long Colt
Retro PS1 Ocelot twirls his Revolver in the Metal Gear Solid 3 inspired Arena map.

Submachine Guns

Heckler & Koch MP5SD6

The MP5SD6 from the original Ac!d returns as a usable weapon.

Heckler & Koch MP5SD6 - 9x19mm
Venus uses the MP5SD6.

Sa. Vz.61 Skorpion

The Sa. Vz.61 Skorpion from MGS3 returns from the original Ac!d with more detail.

Sa. Vz.61 Skorpion - .32 ACP
Close up of the Vz.61 in-game.

M1928A1 Thompson

The Pain's M1928A1 Thompson with a drum magazine appears in the MGS3 pack. It's called "Thompson M1" then "Thompson M1928" once upgraded.

M1928A1 Thompson with 50-round drum magazine, smooth barrel, and early 'simplified' rear sight that would be adopted for the M1 Thompson - .45 ACP
Close-up of the Thompson.

Ingram MAC-11

The MAC-11 appears as a 9mm SMG in Ac!d 2, it is called "Ingram M11" at first. It's later called once it's upgraded as the "Cobray M11". A 2D Sprite version of the weapon from Metal Gear 1 (Identified by the manual and promotional material) is available. The MAC-11 model would later be reused for the "Mac-10" in Portable Ops.

Ingram MAC-10 - .45 ACP

Venus aiming her "Ingram M11".

A close-up of the "Ingram M11".
Venus aiming the 2D Mac-11 "SMG" from Metal Gear.

FN P90

The FN P90 submachine gun returns in Ac!d 2.

Fabrique Nationale P90 - 5.7x28mm
A High-Tech Soldier holds his P90.


Franchi SPAS-12

The Franchi SPAS-12 from MGS2 with the stock removed from Metal Gear Ac!d returns.

Franchi SPAS-12 combat shotgun with stock removed – 12 Gauge.
Snake firing a SPAS-12.

Ithaca 37

The Ithaca 37 (referred to as the M37) in a sawed-off configuration reappears from MGS3 as a usable shotgun.

Ithaca 37 with sawed-off stock and barrel - 12 gauge
Venus holding the Ithaca 37.

Assault Rifles


The AK-47 from MGS3 returns as the first Assault Rifle accessible to the player. It's called the "AK-47I" in-game and can be upgraded to the "AK-47II".

There is another version called the "AKM", which is visually identical in-game. But it has a different card texture.

AK-47 Milled Receiver - 7.62x39mm
AKM Stamped Receiver - 7.62x39mm
Snake fires his "AKM" at SaintLogic guards.
Snake aiming the AK.
VPO-209 - .366 TKM.
The Card Icon for the "AKM", which depicts it with a different wood texture and the AKS-74U magazine from Metal Gear Solid 2. In-game , however, it is identical to the AK-47I.


The AKS-74U returns from the first game. It's always equipped with a suppressor. Chaigidiel has an normal AKS-74U slung on his back. It's oddly used by American troops in the game's ending instead of the more correct and already in game, M4A1.

AKS-74U with folded stock and suppressor - 5.45x39mm
Snake aims his AKS-74U at Revolver Ocelot. Note that it has a suppressor and laser sight.
AKS-74U with earlier handguard - 5.45x39mm
The AKS-74U with no suppressor slung on Chaigidiel's back.


The AMD-65 from MGS3 re-appears as a usable weapon with the stock folded. It's called the "AMD-63" in-game.

AMD-65 - 7.62x39mm
Snake aims his "AMD-63".


The AN-94 is seen in the game as an assault rifle, based from MGS2. It's available only as a NG+ Substance card.

AN-94 Abakan Nikonov assault rifle - 5.45x39mm
Venus aims an AN-94. The mag's missing.


The M4A1 Carbine from MGS2 returns from the original Ac!d as a usable firearm. It's called the "M4", then the "M4A1" once upgraded.

M4A1 Carbine - 5.56x45mm
Venus aims an M4A1.
Colt-manufactured M4A1 with carrying handle removed - 5.56x45mm
A gun camera with the M4A1 with drum magazine.
A UAV with an M4A1 mounted on it.


The M16A1 reappears as the "XM16E1". It uses the same model from Ac!d 1 with the magazine missing. It's exclusive to the NG+ Subsistance MGS3 Pack. Unlike the first game, it is treated as suppressed despite lacking a suppressor on the model.

The M16A1 becomes the "M16A2" when upgraded.

M16A1 with 20 round magazine - 5.56x45mm. What distinguishes it from the original M16 was the addition of a raised rib around the magazine release button, changing of the forward Receiver pins, and the addition of the forward assist button on the upper receiver.
XM16E1 rifle with 20 round magazine for comparison - 5.56x45mm
Snake fires a burst at a SaintLogic Guard.


The signature weapon of The Boss, The "Patriot," returns from MGS3. It's seemingly a cut-down M16A1 fitted with an (technically no longer) anachronistic Beta C-Mag.

It is unlocked as part of the MGS3 Subsistance Pack and The Boss will use it in Arena mode.

Similar-looking Rocky Mountain Arms "M16-Style Pistol" - 5.56x45mm. This has a A2 upper and pistol grip, whereas the weapon in the game has the older A1 upper (simpler rear sight and forward assist but no brass deflector) and an original-style pistol grip.
Closeup of Snake with the "Patriot."


The FAMAS returns from the first game. It is called the "FAMAS/G1" by default and the "FAMAS/F2" when upgraded.

Airsoft FAMAS SV (Tokyo Marui AEG version of the G1) - (fake) 5.56x45mm NATO
Snakes fires the FAMAS at a security bot.

Heckler & Koch G36C

The Heckler & Koch G36C is seen in the game. Snake uses it in MGA2-related game art, mostly with an attachable foregrip. It's unlocked by beating 6 stages in the Extreme difficulty of Arena mode.

Heckler & Koch G36C - 5.56x45mm.
Snakes firing the G36C.

Heckler & Koch XM8 Carbine

The XM8 Carbine from Metal Gear Ac!d returns as a usable weapon.

Older version of Heckler & Koch XM8 - 5.56x45mm
New Snake, same XM8.

Heckler & Koch XM29 OICW

The OICW appears as the main weapon of SaintLogic security forces. It can be obtained via card packs and used by Snake and Venus, but the grenade launcher isn't usable. It' called the "OICW", then the "XM29" when upgraded.

Late OICW prototype - 5.56x45mm & 20x28mm (25x40mm?)
An unconscious SaintLogic Guard holds his OICW.
Venus aims her own OICW at a SaintLogic Guard.

Vektor R5

The Vektor R5 returns from the first game, before being upgraded. It's called the "Galil SAR", but is called the "R5" when upgraded, it is no longer treated as suppressed.

Vektor R5 - 5.56x45mm NATO
IMI Galil SAR with short barrel and black handguard - 5.56x45mm NATO
Venus aims her R5/Galil at Revolver Ocelot.

Sniper Rifles

Heckler & Koch PSG-1

The Heckler & Koch PSG-1 returns from the first game.

Interestingly, when upgraded, the PSG-1 turns into the "PSG-1T" firing Tranquilizer rounds. It's one of the few weapons to get a significant role change when upgraded.

Heckler & Koch PSG-1 - 7.62x51mm NATO
Venus collects a PSG-1 in a cutscene. The model briefly increases in size before disappearing.

Mosin Nagant M91/30

The Mosin Nagant from MGS3 with The End's modifications appears as a weapon. Unlike Ac!d 1, it fires tranqulizer rounds (though still dealing a decent bit of damage) like MGS3 and has a new texture.

Mosin Nagant M91/30 - 7.62x54mm R w/ scope
The End with his Mosin Nagant.
A pickup for the Mosin Nagant with a good view of the 3D model.
Snake firing the Mosin. In the original Ac!d, the Mosin could only shoot once per attack regardless of how much ammo it was loaded with. But in Ac!d 2, it can be shot multiple times with characters mime using the bolt and a shell ejecting at the appropriate time in between shots.

SVD Dragunov

The SVD Dragunov returns from the first game. It still uses the highly downgraded Ac!d model with a missing magazine.

SVD Dragunov with scope removed - 7.62x54mm R
The End in Arena mode fires his SVD at Venus.

Semi-Auto Rifles


The PTRS-41 returns from the first game. This time, it can be used as a weapon by the player.

PTRS-41 with folded bipod - 14.5x114mm
Snake aiming the PTRS-41 at the Boss.

Machine Guns

Stoner 63A

The Stoner 63A returns from the first game as a NG+ Subsistance Card. It's called the "M63" initially, then the "M63A" when upgraded. The upgraded version sets enemies on fire.

Stoner 63A, Commando configuration - 5.56x45mm.
Snake holding the M63A. The ammo box is back on the model after being absent in the original Ac!d.

M61A1 Vulcan Cannon

The hand-held M61 Vulcan rotary gun from MGS1 appears in-game.

GE M61 Vulcan Cannon - 20x102mm
Liquid firing the M61 Vulcan.

Grenade Launchers

M79 grenade launcher

The M79 grenade launcher appears as a usable weapon. Its damage increase the less health the user has. Chaigidiel uses it in his boss fight.

M79 grenade launcher - 40mm
Snake aiming an M79 at full health.
Chaigidiel holds his M79. You can see the mines that he throws in his fight.

RH-Alan RGB6

The Croatian Milkor MGL clone from MGS2 re-appears as a usable weapon. Instead of firing its own grenades, it is used to launch handheld grenades further than Snake or Venus can normally throw them.

RH Alan RGB-6 - 40x46mm
Snake firing the RGB6.


The Panzerfaust appears attached to "Harab Serap", the first boss. He doesn't use them and it is unobtainable to the player.

Panzerfaust - 44mm, with 149mm warhead
The Panzerfaust attached to Harab in-game.

Rocket Launchers

FIM-92 Stinger

The FIM-92 Stinger is seen with both Snake and Venus as an anti-armor weapon. It's initially called the "Redeye II". But it's called the "FIM-92A" after it's fully upgraded.

The model is the Stinger from MGS2. Unlike Ac!d 1, flying platforms can now be targeted with it. If the missile passes through a human on it's way to a target, they will be knocked down and the missile will simply go through them without detonating until it hits its target.

FIM-92 Stinger and missile - 70mm
Venus fires the Stinger.

M47 Dragon

The M47 Dragon appears in the game as an accessible rocket launcher. It does more damage the higher the users' COST. It is the only launcher to have a different apppearance before/after firing a rocket.

M47 Dragon with bipod folded and SU-36/P daysight removed
Aiming the M47 Dragon.
Firing the M47 Dragon.
The rear of the M47 Dragon before firing.
The rear of the M47 Dragon after firing.

Panzerfaust 3

A fictional "double barreled" Panzerfaust 3 appears on the character model of "Harab Serap". Like the Panzerfaust, he doesn't fire it and it is unusable to the player.

Panzerfaust 3 with DM12A1 rocket and standard telescopic sight - 60mm
The Panzerfaust 3 on Harab Serap, note the bundle of grenades on his back too. While Harab doesn't use these, regular guards will sometimes use them.


The RPG-7 is seen in the game with Vince, although Snake and Venus can use them too.

RPG-7V1 with PGO-7 scope - 40mm
Vince fires his RPG-7 at Snake.


M67 hand grenade

The M67 hand grenade is seen as the primary offensive grenade.

Airsoft "M67 hand grenade" gas bottle.
The M67 in-game.

Fictional Soviet Grenade

The fictional grenade design with a slender cylindrical body and an RGD-5 style UZRGM fuze assembly from MGS3 re-appears. Stun and Incendiary Grenades use this model.

A Incendiary Grenade launched from the RGB6.

"Chaff Grenade"

"Chaff Grenades" appear, using their MGS2 model. They most closely resemble M18 smoke grenades. They temporarily disable electronics.

M18 smoke grenade - Yellow.
A chaff grenade on the ground.


M18A1 Claymore

The M18A1 Claymore returns from the first game.

M18A1 Claymore directional mine
Snake placing a Claymore.


Big Joe

The "William Tell" is a "Big Joe 5" crossbow, used by the Fear from MGS3. Snake and Venus can use it as a weapon.

Big Joe 5 crossbow.
Snake aims his "William Tell" Big Joe 5 crossbow.
Close-up of the "William Tell" Big Joe 5 crossbow.

M2 Flamethrower

The slightly fictionalized M2 Flamethrower from MGS3 once again returns in the Ac!d sub-series. In-game, there are now enemy soldiers who use the flamethrower and their fuel tank will always explode on death.

M2 Flamethrower
An Enemy Flamethrower Soldier.
Part of the M2 Flamethrower on Golab's back, he doesn't use it, prefering to drink fuel from the big red fuel tank he carries around then breathe fire at Snake and Venus.

Generic landmine

A seemingly generic mine from the original Ac!d returns.

The Mine placed down.


C4 charges appear as an item. When placed down, C4 can be detonated either by attaching a timer (30 Cost), a "Bomb Switch" Card (which will detonate all placed C4 explosives) or by shooting it directly. Realistically, C4 is too stable to be detonated by gunfire.

Venus uses some C4 in a cutscene.


Like the original Ac!d, C3 appears as a better equivalent of the C4 despite C4 being invented later.

A closeup of a C3 charge in a cutscene.

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