X Multiply (エックスマルチプライ, EkkusuMaruchipurai)[a] is a horizontally scrolling shooter published by Irem, and similar in style to their earlier R-Type.

In 1998, the game was released with Image Fight as a one-disc doublebill on PlayStation and Sega Saturn.

In 2019, the game was released on the PlayStation 4 and Nintendo Switch as part of Hamster Corporation's Arcade Archives series.

The game itself is a side-scroller like R-Type, albeit with a short vertical-scrolling area towards the end of the sixth level.

Scientists have deployed the microscopic fighter X-002 into the body of a person who has been invaded by the alien queen.