"It has been revealed that Japan is to receive a special Gengar event. This event provides a shiny Gengar as part of their "White Gengar" promotion for Halloween. This Gengar is Level 25, comes in a Dusk Ball, and has the moves Shadow Ball, Sludge Wave (which it can't normally have), Confuse Ray and Astonish. It comes holding the Gengarite. This Gengar is being given at various, currently unconfirmed, stores across Japan from September 13th to October 14th."
Also if you see here, it says that in Europe and America 2014 says ''Type - Serial Code''. In Japan says ''In-Life'' so you don't need codes in Japan.
Source Hope this helps!
