By plugging a controller into the second port on a SNES, two extra features can be accessed:

•Pressing A/B/Start at the same time will start the game without having to click on Mario.
•Pressing A/B/Select at the same time will (after a short delay) load and display the currently saved drawing, animation, and music. If nothing has been saved, the message "NO SAVE DATA" will be displayed instead, and you must reset the console to return to the title screen.