The Experience...
Once the game has finished loading you will be presented with the Selection Screen where you choose your coaster.

When you choose to Experience one of the coasters the ride begins! You have the choice of two views - a dramatic external camera view or a rider's eye view from inside one of the cars . Press keys 1 or 2 on your keyboard to toggle between these views. To change your "seating" position in view mode 2, use the < and > (greater than / less than) buttons.

Press S while the coaster is in motion to SCREAM !
Press M to turn music on / off.
Press ESC at any time to end the ride.