Onslaught is a shooting game on www.flash-game.net in which you endeavor to defend a beach with a machinegun and kill all enemies on boats from the sea. Thousands of enemy troopers, tank, aircraft, all up against you, alone warrior armed with heavy machine-gun and unlimited ammo. What can you do alone? Can you survive the bloody slaughter? Kill them all and stay alive? Try going through this hell of blood, gunpower, and metal. You can use your mouse to move the gun and left mouse button to fire the gun. There will be numerous invaders landing on the beach and try to approach your fortress and throw grenades at you. You must eliminate them all. There will be also gunship and tanks attacking your base. Try to explode them using your weapon. As levels up, it will become difficult for you to win. Good luck!