The Slug Square is a Regular Army secret weapon, exclusive to Metal Slug Attack. It first made its debut on the game's event titled 'Try Line 6th', where the boss can also become a playable unit.
Information[]
At last, the Regular Army's secret weapon make its debut! This tank is the largest of all the Regular Army's arsenal, with multiple Regular Army soldiers on board. It protects the base with a variety of bombardments and its impregnable defense.
- ~Metal Slug Attack in-game description.
Details[]
In the game's event, this boss is fought at the last stage. The boss will attack the player's units with its Gatling gun. The Regular soldiers on top of it fires homing bazookas in unison.
Its special attack is firing two cannon blasts from its rear cannon and one large cannon shell from its front cannon. The player must be extremely cautious by keeping the boss away from range, as the attacks have very long distance and can pierce.
Variants[]
![]() |
Slug Square: The original wide Slug. |
![]() |
Slug Square MK II: A blue variant of the Slug Square which sacrifices some offense and defense. The soldiers on top of the Slug Square are armed with mortars instead. |
Golden Slug Square: A golden variant of the Slug Square modified and equipped with a missile launch mechanism and a powerful defense device. It is designed specifically to support the front line from a distance. | |
![]() |
"3D Printer Tank": An unnamed, unmanned tank created from the chassis of the Slug Square fitted with a large 3D Printer. The A.I. Phi operates the tank and fires ammo shaped from her thoughts. |