For the uninitiated, a randomizer is a program that alters a ROM’s internal code. You can change what Pokémon appear in the grass, which Pokémon trainers use, what items you find, and even the abilities or types of existing Pokémon.
: Download the Universal Pokémon Randomizer ZX . pokemon heartgold randomizer rom
: Click Open ROM in the top-right corner and select your clean HeartGold file. For the uninitiated, a randomizer is a program
Randomizing HeartGold can sometimes trigger the game's internal anti-piracy checks, which might cause the game to freeze or prevent you from earning EXP. For the uninitiated