Sappy + Mid2Agb are two tools that can be used for editing the music in Pokemon Gen III games.
Sappy & Mid2AGB
Compatible with: Pokemon Ruby, Sapphire, Emerald, FireRed, LeafGreen
Supported OS: Windows
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Shinyzing Pokemon does not make anything different except that Pokemon will become shining with a golden color.
With eXtreme Script Editor (XSE for short), the best scripting tool for any Gen III Pokemon game like FireRed/LeafGreen/Ruby/Sapphire/Emerald…
Yet Another Pokemon Editor (YAPE in short) is the most well-known powerful tool that can be used to edit Pokemon’s stats.