Metal Slug X is an enhanced version of Metal Slug 2: Super Vehicle - 001/II . The main differences to the original release include:
Additional weapons: Stones, Iron Lizard, Enemy Chaser, Super Grenade, and Drop Shot.
Additional power-ups, items, and prisoners in most of the levels.
Additional times of the day: stages can take place at twilight, sunset, or dusk.
Some of the locations and vehicles in the game have been altered.
Increased enemy count. Some of the enemies' placement has been changed.
Many weapons have a stronger explosive force. Explosions yield more unexpected results.
The soundtrack has been re-mixed.
The gameplay of Metal Slug X builds upon the action-packed formula of its predecessors, with fast-paced action and challenging level design. Players control one of six characters as they fight their way through hordes of enemy soldiers in a variety of stages set in different environments. The game features a range of exciting weapons and power-ups to use against enemies, as well as a mix of exploration and combat.
Metal Slug X was released for the PlayStation on 25 January 2001. It is part of the action & adventure genre and offers a thrilling gaming experience for fans of the series.