Simply put, "Brilliant."

You have really come back with yet another wonderful idea. The game, similar to "Line Rider" can be very addicting and challenging. It has a rather difficult level mode, as well as a free-mode which enables the user to design their own coaster track, without any given objective.

The game's look is very professional due to it's interface, and beautiful graphics.

Also it is nice how the coaster's front, middle, and rear cars, all have an effect on how the coaster is moving. Example: The front of the car is on a straight, flat path while the back is still going up-hill. The coaster slows down. Also the way the cars bend upon change in slope was also done well too.

The only problems I had with this game was size of the package. The download file, and extracted files were a bit larger than they should have been, making 19MB of the 22MB installation. At least the music went along with the theme of game play.

Other than that, this game was very well done and I congratulate you on it's complement. You have taken the limits I once thought there was with Game Maker, and pushed your way past them, for the second time. ^^