Searching for a is a common quest for fans of the early TCG eras, but the reality of these titles is more complex than a simple download. While there are three major entries for the Nintendo 3DS, none were officially released outside of Japan. The Cardfight!! Vanguard 3DS Trilogy
If you are a purist or collector, the best route is to import a physical copy of the Japanese game (which is region-locked, requiring a Japanese 3DS or a modded system) and support the original developers. cardfight vanguard 3ds english rom