: Change the items found on the ground and the moves taught by Technical Machines (TMs). How to Get and Use It Obtain a Clean ROM : You need a legal copy of your Pokémon Diamond ROM file. Download the Randomizer : Get the latest version of the Universal Pokémon Randomizer ZX for your PC or Mac. Load and Configure

Websites like PokeRandomizer.com or ROM Hacking tools offer browser-based randomizers. You upload your ROM, they alter it, and you download it.

: Randomize which abilities a Pokémon can have and which moves they learn as they level up. Evolution Paths

If the total chaos of a randomizer isn't for you, but you still want a new Diamond experience, consider these ROM Hacks (which also require a base ROM and a patch file):

DeSmuME or MelonDS are the gold standards for DS emulation.