Documented for this version

Which controls does this version use?

Actions

Metal Slug 3 action controls
Joystick
Move, aim, and select directions
A
Shoot

The weapon fires in the direction being aimed.

B
Jump
C
Throw a grenade
Joystick Up
Enter vehicles or interact with certain objects

Context-sensitive in the arcade version.

Control notes

  • Arcade control panels commonly use a joystick and three action buttons.

  • Vehicle controls can vary by machine and context.

How it plays

How does Metal Slug 3 play?

The game uses a side-on perspective and supports one or two players. The objective is to advance through a sequence of stages, defeat enemy formations, rescue hostages, collect weapons, and destroy a large boss at the end of each mission.

Players can walk, jump, crouch, shoot in several directions, throw grenades, and board vehicles or other usable machines. Metal Slug 3 is notable for branching paths, underwater sections, transformations, and environmental hazards. Temporary weapons and vehicles expand the player's firepower, while losing a life normally removes most carried equipment.

Plan your run

What is the best way to play Metal Slug 3?

Conserve heavy weapons for dense enemy groups and bosses rather than spending them on isolated targets. Learn enemy spawn points, especially in narrow passages where jumping blindly can cause a collision.

Explore alternate routes when possible, but do not rush into unfamiliar areas. Rescue hostages and collect weapons safely, use vehicles to absorb damage when appropriate, and keep moving during boss patterns instead of staying directly beneath projectiles.

Meet the cast

Who are the key characters?

1

Marco Rossi

A regular army soldier and one of the series' principal protagonists.

2

Tarma Roving

A skilled soldier and recurring protagonist who can be selected in cooperative play.

3

Eri Kasamoto

A member of the S.P.A.R.R.O.W.S. unit and one of the selectable protagonists.

4

Fiolina Germi

A S.P.A.R.R.O.W.S. soldier and selectable protagonist.

Documented inputs

What cheats and unlocks are documented?

Documented unlock

In many arcade versions, continuing lets you keep progressing; some builds also include extra mode options or post-clear content, but conditions vary by release.

Before you begin

What should you know before playing?

  1. 1

    Use short bursts when aiming near hostages or explosive scenery.

  2. 2

    Crouching can reduce exposure while preserving the ability to fire.

  3. 3

    Branching routes are worth learning because they change hazards and resources.

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