Naomi System Menu extra message

[bobbydilley]

Not sure if this is known, but found something I thought is sort of interesting.

If I go into the Naomi SYSTEM MENU by pressing the 'psw1' switch (I think is the test switch, I can never remember which ones which) I get these lines of text:

SYSTEM MENU
JAPAN VERSION
VxWorks

If I then repeatedly press the service button 'psw2' switch, after the pointer runs around the list about 4 times, the text changes from VxWorks to:
NAOMI GAME BOOT ROM Ver 2.01

 

[MetalliC]

yes, it was known for a while.
there is another one - at ROM TEST screen (after test was complete) press Service switch 20x times - you'll see MAIN board and ROM board serial numbers, and game ID.

 

[bobbydilley]

Oh cool - I’ll give that one a try - thanks!