Games like Contra: Operation Galuga
Games like Contra: Operation Galuga include Huntdown, METAL SLUG, METAL SLUG 3, Terminator 2D: NO FATE, and Contra Anniversary Collection. We matched them by the tags players give Contra: Operation Galuga on Steam (Action, Arcade, Shooter, Platformer, and 2D Platformer): closest matches first, and among equally close ones the better-known games.

Huntdown
Shared: Action · Shooter · Side Scroller

METAL SLUG
Shared: Action · Arcade · Side Scroller

METAL SLUG 3
Shared: Arcade · Action · Shooter

Terminator 2D: NO FATE
Shared: Arcade · Action · 2D Platformer

Contra Anniversary Collection
Shared: Action · Side Scroller · Platformer

Alex Jones: NWO Wars
Shared: Action · Arcade · Shooter

Broforce
Shared: Action · Platformer · 2D

METAL SLUG 2
Shared: Action · Arcade · Shoot 'Em Up

METAL SLUG X
Shared: Action · Arcade · Shoot 'Em Up

Kero Blaster
Shared: Platformer · Shooter · Arcade

Soda Crisis
Shared: Action · Shooter · Side Scroller

Guns, Gore & Cannoli
Shared: Action · Side Scroller · 2D

Bit Blaster XL
Shared: Shooter · Arcade · Shoot 'Em Up

Iron Meat
Shared: Shooter · 2D Platformer · Action

Blazing Chrome
Shared: Action · Arcade · Side Scroller

METAL SLUG XX
Shared: Action · Shooter · Arcade

Rogue Legacy 2
Shared: Arcade · Action · Platformer

Guns, Gore and Cannoli 2
Shared: Action · Side Scroller · Shooter

Intrusion 2
Shared: Action · Platformer · Shooter

SHINOBI: Art of Vengeance
Shared: Action · Platformer · 2D Platformer

Zombotron
Shared: Action · Shooter · 2D

DEVIL BLADE REBOOT
Shared: Action · Shooter · Shoot 'Em Up

Planes, Bullets and Vodka
Shared: Action · Arcade · Shoot 'Em Up

RIVE
Shared: Arcade · Shoot 'Em Up · 2D Platformer