Pokémon Soul Silver

Pokémon Soul Silver Extreme Randomizer shuffles Johto and Kanto at the deepest level — typings, evolutions, moves, and all encounters are randomized while the Pokémon-following mechanic stays active. Your walking partner's typing and evolution path are randomized, so you won't know what it's capable of until you level it up. Sixteen gyms of extreme-randomized content across two full regions.

The walking Pokémon mechanic in Soul Silver extreme mode creates a uniquely strange experience — your lead partner's type and evolution are randomized, but it still follows you across all of Johto and Kanto as this unknown creature. Sixteen gyms of extreme-randomized content make this the longest GBC/NDS extreme randomizer experience available.