The same example level as viewed in the game. It is called 'scummvm-freddimazemadness.ini' in the folder 'Steam\steamapps\common\Freddi Fish and Luthers Maze Madness\ScummVM_Windows'. This file can be accessed in the Steam version as well. The editor can be opened with ScummVM by using Control-D, and then typing 'room 5.' It can also be opened by going into hegames.ini on C:\Windows, adding 'RhettCool=1' under, then entering the game and pressing the 'E' key while viewing the standard editor.
In its final game state, it allows single caves to be saved and loaded. The Secret Level Editor in Maze Madness is an in-house editor that was used by the designers to create the game's levels. The secret editor with an example level open!