Metal Slug X

The game features additional weapons such as Stones, Iron Lizard, Enemy Chaser, Super Grenade, and Drop Shot. Players can also collect power-ups, items, and prisoners in most levels. The game's stages now take place at twilight, sunset, or dusk, adding a new level of realism. Some locations and vehicles have been altered to provide a fresh experience.

The gameplay has also been tweaked with more enemies on the field, including some that are placed differently. Many weapons have been made more powerful, resulting in explosive effects that can catch players off guard. The soundtrack has been re-mixed to create a new atmosphere, adding to the overall gaming experience.