Use your mouse.
Test your skills by controlling a tram and taking passengers to their destination. You will have to make sure their ride is smooth, otherwise they will become angry and will refuse to pay for their ticket. At the end of each level you will get a sum of cash which you can use to buy awesome upgrades and make your tram better. This game is different from most driving games because you will control the tram directly in the interface of the game with your mouse. Have a lot of fun!