Go to your steam my games, tell it to add a shortcut to desktop.
Find that shortcut , right click - properties and add -novid to the end. that might work
You can try changing that command line to say:
"C:\Program Files\Steam\Steam.exe" -applaunch 1250 Entry.rom
But this MAY cause the game to load without bringing up the Main Menu. We will be removing the auto-updating of the INI in the next update, but we did it this time to ensure that all INI files were updated 100% without any issues.