If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
In this 4th edition action series you get to create total havoc! With more weapons to use, bigger upgrades and badder costumes. There's 40 awesome objectives to complete, including underground passages, a busy freeway and even a nuclear plant! Go on crazy killing sprees and destroy everything on your path.
Arrow keys to move and aim.
Up key to use jet-pack.
Spacebar to use or drop weapons.