Metal Slug Infinity/Battles

The Battles submode in Metal Slug Infinity is where the majority of player interactivity takes place.

PVP

The player fights against an opponent's battle deck. The unit's level is based on the Commander Level. The battle ends when a player's base is destroyed or all units in a deck are defeated. Should a minute pass in battle, everyone's stats are given a full burst.

Gems and Honor Coins are rewarded daily and weekly through rankings. Each battle costs a PVP ticket.

Rewards

Grade	Condition	Daily Rewards	Weekly Rewards
God of the Battlefield	1300+ Pts. Top Player	100 800	1000 1500
Ruler of the Battlefield	1300+ Pts. 2nd Place	90 720	900 1200
Destroyer of the Battlefield	1300+ Pts. 3rd Place	85 680	850 1000
Hero (Gold)	1300+ Pts. 4th-10th Place	80 640	800 900
Hero (Silver)	1300+ Pts. 11th-50th Place	75 620	750 850
Hero (Bronze)	1300+ Pts. 51st-100th Place	72 610	720 820
Ace (Gold)	1200+ Pts.	70 590	700 800
Ace (Silver)	1150+ Pts.	65 570	650 750
Ace (Bronze)	1100+ Pts.	62 560	620 720
Veteran (Gold)	1050+ Pts.	60 540	600 700
Veteran (Silver)	1020+ Pts.	55 520	550 650
Veteran (Bronze)	1010+ Pts.	52 510	520 620
Reservist	1001+ Pts.	50 500	500 600

Arcade

The player attempts to reach a high score by defeating enemies. Unlike other modes, the singular unit is controlled by pressing buttons to attack and jump, and moving the virtual joystick to move and aim. Unit and Slug Pieces are given per number of attempts. Each attempt is one credit, and more are earned by collecting Arcade Credits.

There are three arcade cabinets:

• Destroy the Subway: Marco or Eri attempt to destroy as many Subways as they can under a time limit while various Rebels fight from both sides.
• Air Strike: The Slug Flyer or Slug Copter fight multiple enemies in the sky.
• Storming the Mothership: A red-clad Bazooka Soldier, Shielded Soldier, or Rebel Infantry (Grenade) fights against Martians and Invaders while various ally Rebels attack and protect for the player.

World Boss

The player base collaborate together to defeat a specific unit with an abundant amount of health. Each time the boss is damaged, everyone is given two rewards: one for personal total damage and the other for collaborate total damage. The player can earn the latter set of prizes by contributing up to seven times per boss. A round against the boss ends when all units are defeated or time ends. The player can access three ally skills and one passive skills to deal more damage.

Ally Skills: Accessed once before waiting for a cooldown.

• Against Iron Nokana:
  • Defensive Posture: Allies are invincible and have their attacks boosted for a short while.
  • Giant Cogwheel: An enormous cogwheel rolls down the arena and damages the World Boss. Allies have their attacks boosted for a while.
  • Emergency Slug Call: Everyone enters their Slugs. Ally critical chance is boosted for a while.
  • Slug Full Attack: Everyone's Slugs are tossed to the World Boss in which its defenses are reduced for a while.

• Against Dai-Manji:
  • Confusion: Enemies barring the boss attack each other for a while.
  • Bombardment Request: Sends an airstrike on screen. Ally attacks are boosted for a while.
  • Concentrated Fire: Ally units target the boss for a while. Ally attack range is boosted for a few seconds.
  • Support Unit: Bazooka Soldiers, Gatling Soldiers, and LV Armors are deployed for assistance. Allies under electric shock are turned to normal.

• Against Rebel Gigant:
  • Armor Piercer: All allies' pierce stats are boosted to 100% for a while.
  • Stand-Down: Allies' attack stats are boosted for a bit.
  • Emergency Slug Call: Everyone enters their Slugs. Ally critical chance is boosted for a while.
  • Slug Full Attack: Everyone's Slugs are tossed to the World Boss in which its defenses are reduced for a while.

• Against Jupiter King:
  • Defensive Posture: Allies are invincible and have their attacks boosted for a short while.
  • First Aid: Allies become immune to status ailments for 5 seconds. Electric shock effect is removed.
  • Armor Piercer: Allies' pierce stats are boosted to 100% for a while.
  • Bombardment Request: Sends an airstrike on screen. Ally attacks are boosted for a while.

• Against Monoeye:
  • Defensive Posture: Allies are invincible and have their attacks boosted for a short while.
  • Support Unit: Bazooka Soldiers, Gatling Soldiers, and LV Armors are deployed for assistance. Allies under electric shock are turned to normal.
  • Emergency Slug Call: Everyone enters their Slugs. Ally critical chance is boosted for a while.
  • Bombardment Request: Sends an airstrike on screen. Ally attacks are boosted for a while.

Passive Skills: Occurs at all times in battle.

• Heal Over Time: A percentage of health is restored every second for all allies.
• Quick Reload: Boosts ally's attack speed by a large percentage.
• Armor Destruction: Decreases the World's Boss' defenses by a large percentage.

Power Defense

The player earns Mastery Points by leading a team of six units against waves of enemy units. A wave appears on the battlefield after their countdown is up and multiple waves can show up at once. The enemies fought depends on the faction chosen (e.g. the Regular Army fights the Rebel Army). Power Defense only considers the units' grades and enhancement levels. The player nor the enemy use Slugs in this mode.

Unlike other modes, the units are deployed manually, each unit costs a number of summoning points to be deployed, and a cooldown starts before the unit can be deployed again. The summoning point cost and cooldown timer varies on the unit's role, grade, and enhancement level. During a battle, the amount of summoning points increases in intervals and more points are acquired by defeating enemy units.

There are a maximum of 20 stages for the player to traverse from. The higher the stage the more Mastery Points a player can sweepout once they are unable to progress at the moment. The sweepout reward is based on the current highest stage, regardless of faction. A player can only acquire the sweepout reward once per day. The maximum amount of Mastery Points a player can accumulate is based on the number of units in possession x 350 and no more points can be acquired in excess of the max amount. A player can challenge for free twice per day, and a ticket is wasted regardless of the outcome.

Stages 1-13 reward Mastery Points equal to the relative current stage. Stages 14-20 give out higher rewards.

Sweepout Reward

Highest Stage Cleared	1-13	14	15	16	17	18	19	20
Mastery Points	1-13	15	17	19	21	23	26	30

Armory Invasion

The player fights a giant enemy alongside support enemy units using four units and Slugs. Only the Commander Level and the Soldier/Slug Grade and Enhancement are applied. Beating a stage awards the player with Gears, Carbon, and Option Switch Tickets. Later stages also award Gear of Advanced rarity.

Occasionally, the Armory Special is temporarily unlocked as part of an event. These stages are more difficult but have better rewards and grant a higher chance of giving out Advanced Gear.