Choose your car and race up and down the hills in different levels. Customize the color, engine, springs and the tires of your car to reach the best score for each track.
Build up your elevators and man the hallways as you protect your only corridor from the creeps. Switch elevators as you need more power and use your man to defend from extra large groups.
Keep track of the incoming and outgoing traffic of a busy airport! Guide the planes and helicopters to a safe landing, making sure to avoid any accidents!