Speedifen is an unity 3d driving game where you play as a bus driver and you have a problem. Your bus is packed with explosives and you have to keep a constant speed or the bus will explode. Drive over 50km/h and rescue all passengers. They have to jump out from the bus and that's why you shouldn't drive too fast. Have fun.
To play Speedifen, you will use arrow keys or W,A,S,D keys to drive the bus.