Wacky Workbench

From the Sonic News Network, the Sonic Wiki

Wacky Workbench is the fifth round from the game Sonic the Hedgehog CD. It follows Quartz Quadrant and precedes Stardust Speedway.

It is a factory level located in a canyon. The past features an early construction of the Workbench. In the bad future the level is ruined and rusty, while the good future shows an advanced pink/purple plant similar to that of a fictional toy factory.