Be a railroad architect and design a train route and test it with the indestructible cart! Instructions: Click on a piece on the bar on top to select it. Use the arrow keys to move the black cursor. Press space to place the track where the black cursor is. Buttons: Go - tests the track. Clear - clears the track. Rotate - Rotates the pieces on the bar on top. Flip - flips the 2 way piece. Edit - stops testing the track so you can edit it. To erase a track just put something else on top of it. While the carts are going you can change the speed by using the up and down keys. The track with the pink dot is the finish. You can only put a stright piece in front of the starts. A red dot turns the cart around.