The Nintendo DS was region free until the DSi (and then only DSi titles were region-locked and even then only on the DSi [or later, 3DS]). I have Pokemon: Schwarze Edition 2. Used it to RNG perfect Dittos of all the viable natures (essentially all but the neutral ones [i.e., Quirky] and the "lower defense, higher special defense" and vice versa), Trick Room Dittos, and viable Hidden Power Dittos with both Timid and Modest natures (Ice, Electric, Grass, Fire, Rock, Ground, and Fighting). For reference, this is 32 different Dittos... Why? Well: the Hidden Grotto in the crater with Kyurem could spawn a Ditto. Simply RNG the Grotto to spawn a Ditto, and then RNG the Ditto. I could have done this on my English copy, but then I would have English Dittos, which are less useful for breeding than a foreign Ditto. Since I can't read Japanese (well, I only speak/read English), I chose a European edition so I could quickly translate anything, if necessary (during the "story" and to verify natures/characteristics when RNGing the Dittos). That being said, Gen. V are considered DSi games, as they are DSi-enhanced. So I wouldn't be able to play 'em. On my DS, maybe, but I wouldn't be able to play 'em on my 3DS which puts me off from buying them. I don't really want to bother with getting Japanese versions of Gen V-VI for that reason. Show-off time~ The sticker on my FireRed screwed up... I hate that... It's developed some kind of air bubbles under the layer of transparent stuff and it's never been the same since. You don't have Pokemon Yellow? For shame sir. (Unless you said earlier that you do/don't have it... :P)