The Ultimate-64 has one button on the side of the board, which is placed on the original position of the power button.
This button is called the MultiButton, because it handles several functions.
|Power on||When the machine is off, press the button briefly to switch it on|
|Power off||Press the button for 4 seconds to switch off the machine.|
|Reset||Press the button for about 1 second to reset the machine.|
|Menu||Press the button briefly to enter the File Selection (Ultimate) menu.|
|Freeze||Hold the button and briefly tap on the RESTORE key to get into the freeze function of the selected utility cartridge.|