An amusement device comprises a lightweight coaster adapted to move by gravitation along a track configuration having portions of varying inclination. The track is supported at its elevated end by an assembly which also serves as a mounting platform, and at a point intermediate its ends by another support structure. Spaced apart, substantially convex parallel rails, on which coaster wheels having a substantially concave circumferential groove therein are adapted to ride, form the track. The coaster is generally box-shaped, substantially enclosed at the top, and houses a compartment in which the occupant sits and which includes a handle-bar assembly and a coaster release handle to initiate coaster motion. The wheels of the coaster are adjustable to control their speed of rotation.