The project has a long history, originally developed by using YoYo Games' Game Maker before being moved to GameMaker Studio for better performance and 60 FPS gameplay.

: Reintegrates famous cut bosses like the Stone Turtle and Glenn Achilles .

Adjusts the physics and durability of vehicles, making the Slug Gunner and Spider Slug more viable in combat. How to Download and Set Up Metal Slug 5 Elite