True randomization requires modifying the game files (ROM) or using a "LayeredFS" patch, which QR codes cannot do .
The Ultimate Guide to Pokémon Y Randomizer QR Codes Using is a faster and often better alternative to the traditional, complex process of modifying ROM files. While full-game randomization typically requires custom firmware and a PC, QR codes allow you to inject specific randomized elements or "any Pokémon" directly into your save file using the 3DS camera. Why QR Codes are Better Than Standard ROM Hacks
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