In this category it's necesary play on a japanese cartrige, because on the any% it can be use a japanese cartrige, because the differences between version its only the language.

I think Any% (J) is mostly a legacy board for runs that were tracked separately from this site (my run being the exception).

When I did my run, I had a suspicion that there were no language advantages, but I didn't confirm it (i.e. counting every text box on max message speed) until usk's recent WR.

The number of text boxes remains the same across NA, PAL, and JP versions (2 text boxes of difference in my count that I mostly attributed to human error.