The best parts of the Pokémon Gold demo leaks are the early

Never-before-seen designs, including pre-evolutions and evolutions.

Pokémon Gold 1997 Demo Leaked: Never-Before-Seen Pokémon and More! - Hey Poor Player

Pokemon Gold/Silver 1997 Space World Build Leaks At Last

Interview With The Pokemon Beta Leaker – Lava Cut Content

Pokemon Gold and Silver Beta Leak Reveals Early Designs of Classic Pokemon

Alpha & Beta (Part 18)

Here's A Look At Prototype Pokemon With Names And Typing From Pokemon Gold Space World Demo – NintendoSoup

Dr. Lava on X: Beta Johtomon: Lots of Pokemon beta sprites were discovered in Gold & Silver's 1999 demo when it leaked back in April. There weren't any Lost Pokemon at this

Unreleased 2nd Generation Pokemon Found in Early Copies of Gold and Silver - IGN

The best parts of the Pokémon Gold demo leaks are the early designs - Polygon

Pokémon Gold and Silver - Wikipedia

PokeNecromancer: How An Artist Is Resurrecting Lost Pokemon With Amazing Illustrations

Gen 2 Demo Leak: All 1004 Beta Sprites – Lava Cut Content