If the game freezes, just click inside it (games can get unresponsive if you click elsewhere on the page).
Killer Trucks 2
Space - switch direction.
It's marshal law on your city streets! Riots have broken out and you need to try and keep on top of it before it is total meltdown! Use one of your police vehicles to take these criminals out. Leave NOTHING standing! Win back control of the streets and city! Good Luck