You can "Impossible Evolutions," allowing Pokémon that usually require trading (like Machoke or Electabuzz) to evolve via level-up or special items. Why Black 2 is the Best Candidate for Randomizing
Gym leaders and rivals will have completely randomized rosters, forcing you to adapt your strategy on the fly.
Because the base game is so robust, randomizing it creates endless replayability.
Permadeath rules, random wild encounters with similar base stat totals, unmapped items.
UPR FVX Branch : An advanced version that includes extra features like and custom graphics. 2. How to "Complete" the Randomization