Pressing Ctrl-P at any time toggle the game to "psychedelic mode" on and off. This option is an Easter Egg, therefore it does not explicitly appear in the menu bar nor in the game manual.
The icon interface is similar to King's Quest VII: The Princeless Bride (1994), differently from most Sierra games: instead of the multiple command icons (Walk, Look, Take/Use and Talk), there is only one all-purpose cursor in shape of arrowhead, which blinks when the player passes it over an item/character which can be interacted with, or turns into an arrow to point a way which the player can walk.