256x item selling price glitch | Amazing Trainers | Berry glitch | Draining hitpoints animation glitch | Evolution animation glitch | Sticky Hold glitch | Mossdeep City Skitty glitch | Truck glitch | Nightmare glitch | Mossdeep City Skitty glitch
Acro Bike instability glitches (Japanese only) | Dark red selector glitch (International only) | Excessive doll arrangement glitch (Japanese only) | Mail and Trick glitches (Japanese only) | Surf on land (Japanese only)
Exclusive to FireRed and LeafGreen:
Celadon City origin glitch | Pokédex species glitch | Roaming Pokémon Roar glitch
Exclusive to Emerald:
Battle Pike poison knockout glitch | Black curtains glitch | Mart worker glitch | Mover Vigoroth cry glitch (Japanese only)
In various or all entries:
Azurill gender glitch | Boss HP recruit glitch (Mystery Dungeon) | Decamark-specific glitches | Dewford Gym footprint glitch | Evolution move-learning glitch | Focus Punch glitch | Roaming Pokémon IV glitch | Sky Pillar glitch | Thunderbolt glitch | VBlank RNG interrupt glitch
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The Dewford Gym footprint glitch is a minor glitch which only exists in Pokémon Ruby, Sapphire and Emerald. When the player walks across sand he or she will normally leave footprints, however if when the player is outside of the Dewford Town gym, if a Dewford Gym wall is one tile above the player (the door does not apply) no footprints will be left even though sand is underneath the player's feet.
http://pokeglitch.tripod.com/id10.html - A list of minor glitches in Pokémon Ruby and Sapphire from Pokéglitch.tripod.com.