Four friends get together for a party while the parents are away, but somebody ... or something, is about to crash the party. In four-player melee action, you will fight off the monster invasion in this top-down action/shooting game. Customize and build your own weapons by grabbing parts from the house and town to create more powerful attack tools, and find rare parts to build some ultimate weapons. Jack abandoned vehicles and deck them out with weapons to ride through the terrain and take out creatures. Visit five locations, including the suburban town, the high school, and the "Shopping Maul."

• 4-Player Cooperative Online Action - Mix local & online players as you try to survive the Monster's invasion. Each player character has unique items and affects how the story plays out.
• 3D Top-Down Shooting - Aim in any direction, including up and down.
• Customize Your Weapons - Acquire Weapon Parts by defeating enemies and exploring your environments, and then use these parts to build more powerful weapons.
• Drive Vehicles - Find abandoned Vehicles, outfit them with deadly weapons, and ride in them to overpower your foot-bound foes.
• Killer Graphics - Running on the Reality Engine, Monster Madness takes full advantage of the most advanced Shader Model 3.0 capabilities, including High Dynamic Range Rendering and fully dynamically lit & shadowed worlds.