Pokemon Fat Kid is a GBA Rom Hack based on Pokemon Emerald. It has a new Protagonist (The Fat Kid), New Region (Cheeto Region) & an Amazing Story!
In short, Pokemon Fakemon FireRed is a ROM hack of Pokemon FireRed, whose main feature is the 252 original Fakemon, plus 19 Mega Evolutions!
Download Pre-Patched Pokemon Factory Adventure. It is a GBC Rom Hack based on Pokemon Red. The year is 199X. Several months after becoming champion of Kanto.
Download Pre-Patched Pokemon Extreme Red. It is an improvement-type hack of Pokemon FireRed with tons of new features and Pokemon to catch.
Download Pre-Patched Pokemon Expert Emerald. It is a GBA Rom Hack based on Pokemon Emerald with the same story but some new features!
Pokemon Eternal Snow is a GBA Rom Hack based on Pokemon Emerald but with 3 Leagues, 18 Gyms, 672 Pokemon, All Eight Eeveelutions & the addition of Fairy Type!
Pokemon Emerald Wally Version is a GBA Rom Hack based on Pokemon Emerald but with a little twist, instead of Brendan you'll be playing as Wally!
Download Pre-Patched Pokemon Emerald Trashlocke Edition. It is a GBA Rom Hack based on Pokemon Emerald that packs a challenge for its players!
Googleben released a Pokemon Emerald Party Randomizer for a streamer, which randomizes all of the Pokemon of your party at the beginning of every battle.
Pokemon Emerald No Levels Mod is an emerald romhack that removes the effects of levels on Pokemon stats. Pokemon still learn move or evolve through levels.