[<< wikibooks] Super Mario World/Forest of Illusion
The Forest of Illusion is a confusing area of the game filled with odd paths and other diversions finally culminating with your escape then fight through Roy's Castle.

Forest of Illusion 1
Forest of Illusion 2
Blue Switch Palace
Forest of Illusion 3
Forest Ghost House
Forest of Illusion 4
Forest Secret Area
Forest Fortress
Roy's Castle