AFAIK there's no difference. The closest would be Korean Brave Maximus who has an upside-down factory applied Autobot insignia, but the toy is physically just as good as Japanese Brave Max. But yeah, the toys themselves are just as good as Takara's. The packaging and tech spec cards are notoriously fail -- and for some reason Autocrusher is called Autoslasher in Korean... but they're relatively cheap alternatives to getting the Japanese versions.