Toy play set with moving platform

A toy play set for use with a toy vehicle comprising:

• A) a support structure;
• and
• B) a platform assembly rotatably mounted to the support structure, the platform assembly comprising:
• a) a toy vehicle support surface defining a toy vehicle's direction of travel, wherein the platform assembly is adapted to rotate about an axis at least partially in line with the direction of travel between a first position in which the toy vehicle support surface is facing a first direction and a second position in which the toy vehicle support surface is facing a second direction different than the first direction,
• b) a gateway mechanism adapted to selectively retain a toy vehicle disposed on the toy vehicle support surface, the gateway mechanism including:
• i) a barrier disposed in a travel path of a toy vehicle along the toy vehicle support surface, wherein the barrier is adapted to be selectively removed, and
• ii) a stop member projecting into the travel path, wherein the stop member is movable between a stop position in which the stop member extends into the travel path and a passage position in which the stop member is retracted from the travel path, and
• c) a first biasing mechanism adapted to bias the stop member toward the stop Dosition.
• d) a first detent mechanism along a trailing edge of the platform assembly, and
• e) a second detent mechanism along the trailing edge of the platform assembly, wherein the first detent mechanism and the second detent mechanism are each adapted to selectively stop rotation of the platform assembly at different points.