Monster Attack is a third-person action shooter where you play as an EDF infantry man tasked with battling hordes of giant bugs, robots, and alien ships that have invaded Earth across 30 missions. The game features 2-player split-screen cooperative multiplayer.
You can choose from dozens of various missile launchers, machine guns, flamethrowers, and more unique weapons for each mission, which are given infinite ammo. However, the weapons must still be reloaded after each clip is used up. Players can also mount vehicles such as an air bike, a tank, and a helicopter in one of several fully destructible environments.
The player recovers and increases their maximum health and armour throughout the game, and unlocks new weapons by picking up power-ups from defeated enemies that spawn in and come at the player. The game takes place on November 24th, 2000, for the Playstation 2 console.