Hardware: Dreamcast VMU Game System: Sega Dreamcast Cheat Category: Cheat Game Company: Unknown Game Category: Unknown Hint, Cheat, Walkthrough:   Dreamcast VMU ============= Change settings: Press Sleep to turn on the VMU. Press Mode until the clock icon flashes, then press A. Hold Left + A at the time display screen to start the process of entering a new date and time. Note: The time is entered in 24 hour military format. Press Up or Down to change the animated display when prompted.