Many years have passed since the last space invader war, and the wounds that the war brought to the earth have gradually been healed.
However, peace is always short-lived, and new regional disputes are beginning to appear around the world. The headquarters has gathered outstanding commanders from all over the world to create a tenacious force to resist the new threat that is coming.
Commander, the fate of mankind is up to you.

Game features:
---Reproduce the classic elements---
Classic roles, classic scenes, classic music, revisit the works of the previous generations of Metal Slug.

---Two-line strategy battle---
Rich character characteristics, interesting formation strategy, and become the strongest commander together!

---Giant Mecha Collection---
The most powerful mecha can also be included under your command to obtain super mechas and sweep away all enemies!

---Free to match the lineup---
The card level is shared, and you can easily experience a variety of lineups.

---Simple and easy way to play---
The gameplay is easy and fun, bid farewell to the liver burst, and experience the pure joy of the game.

---Global players on the same server---
Commanders from all over the world gather to form the strongest troops to stand out!