As usual, there is no support from Stern. No manuals, no game code, no page even on their website for this machine. Just a news release with a link to go to a different company for information about it.
And speaking of Whoa Nellie, I sent Stern two emails almost a year ago pointing out the many errors and omissions in the Whoa Nellie manual and was promptly ignored. They still haven't made any corrections to the manual which is dated 4-22-2015. I have a thread here listing all the errors/omissions.