Both of your sources that you have referred to have no definitive answer.

“Since there is no agreement on this difficult problem, you must make your own choice.”

This is quoted from:

http://chuma.cas.usf.edu/~olson/pms/apostrophe.html

In every English class I have taken between high school and college it has always been taught that there should not be an extra “s”. So, yes, on a technicality you can have that extra “s”, but it is more widely accepted to drop it.

These respected sources noted in the Wikipedia entry include Strunk and White’s “The Elements of Style”, which is where I recall first learning the correct way to punctuate “Bones’s.”

It’s a really short guide (quick read) and a well-known, respected reference for future occasions of questionable punctuations. :P

http://en.wikipedia.org/wiki/The_Elements_of_Style

I will maintain my view that this is a mistake because it creates a an awkward pronunciation. :P

“_Respected_sources_ require that almost all singular nouns, including those ending in s, z, or x, have possessive forms with an extra s after the apostrophe. … Such sources would demand possessive singulars like these: Senator Jones’s umbrella; Mephistopheles’s cat.”

SOME SOURCES follow the rule you quoted, but “Such sources permit possessive singulars like these: Socrates’ later suggestion; James’s house, or James’ house, depending on which pronunciation is intended.”

I’m guessing for you to be right, you’ll maintain that any singular possessive is difficult or awkward to prounce with an added s sound. :P

Just admit that you tried to make fun of something, but turns out the joke’s on you. Come on! ;)

Not making fun or foreign speakers, I know I wrote “Engrish”, just joking around, I thought it was more funny that it was probably Nintendo of America’s mistake.

Here is a quote from one of your sources:

“If the singular possessive is difficult or awkward to pronounce with an added s sound, do not add an extra s”

“dry bones turn” or “dry boneses turn”, the second is awkward, therefore no “s”

http://chuma.cas.usf.edu/~olson/pms/apostrophe.html
http://en.wikipedia.org/wiki/Apostrophe

I’m not a native speaker, and I remember learning this in English class. I’m surprised so many native speakers assume something like "Bones’s turn" is absolutely incorrect.

As always, master your own language before making fun of foreign speakers. :P