Monster Force is an action video game developed by Digital Eclipse and published by Vivendi Universal Games exclusively for Game Boy Advance. A planned PlayStation version of the game was to be released in 2001 by Konami, as well as a Game Boy Color version, but these never achieved fruition.

The gameplay is similar to the game Gauntlet. Gameplay is depicted from a top-down perspective and players fire projectiles at enemies. Players can collect atoms to purchase power-ups and healing items between levels. Every level consists of two levels set in a specific setting usually appropriate with horror films (e.g., a cemetery, a laboratory). After completing those levels, the player must complete a trial level, where they must achieve a certain objective. Failure to complete the trial levels results in having to fight a boss. If hooked up to another Game Boy Advance, two players can fight each other.