Silast on Twitter: "It looks like the game is compatible with PokeMMO but it will need a few specific adjustments + some maps that aren't 1:1 recreations (like route 209) need to
Game Boy Advance - Pokémon Emerald - Route Icons - The Spriters Resource
Pokémon Émeraude > Guide des Lieux > Route 102 - Pokébip.com
The PokéCommunity Forums - View Single Post - Hoenn RéBURST [M] [IC]