|Metal Slug X|
|Hack of||Rock Hero Legend 3|
|Console||Game Boy Color|
|Sound engine||Rockman World 2|
|Alternate names/hacks||Yuenan Zhanyi X: Shenru Dihou|
In the game you play only as Trevor Spacey from Metal Slug 4 though 9 linear levels. The gameplay is different to the official games as you can only shoot horizontally and you can oddly roll around in a ball (similar to the morph ball from the Metroid series.) Like the official games you can take weapons and have a health bar similar to Metal Slug Advance. Some enemies are original though others come from various official games. The music is lifted from the Game Boy game Rockman World 2 (Megaman 2 outside Japan) but plays at a much slower tempo.
- The game seems to be a hack of a previous Sintax release, Rock Hero Legend 3 (also referred to as Zook Hero 3.) Aside from the player sprites and intro this particular release also features a level select.
- The boss before the final boss appears to be X from Mega Man X.