One of the most famous quirks of the 1.0 ROM is how it handles Pokémon categories in the Pokédex. For Pokémon with two-word categories, the game only displays the second word. Pidgey is labeled as a "Tiny Pokémon" in v1.0, but this was corrected to "Tiny Bird Pokémon" in later revisions. ⚠️ The Legendary "Roar" Softlock The most notorious bug present in v1.0 (and v1.1) is the Roaming Roar Glitch
For purists, v1.0 represents the exact experience players had on launch day in September 2004. Key Features of Pokémon LeafGreen pokemon leaf green rom 1.0