Expendable (also known as Millennium Soldier: Expendable in some regions) for the Sony PlayStation 1 is a fast-paced, arcade-style shoot 'em up game set in a futuristic sci-fi universe. Developed by Rage Software and released in 1999, players control a cloned super-soldier tasked with thwarting an alien invasion. The gameplay involves running and gunning through various levels, destroying hordes of enemies, utilizing a wide array of weapons, and dodging environmental hazards. The game offers both single-player and cooperative multiplayer modes, emphasizing intense action and over-the-top explosions within its genre.