This hack of Pokemon Emerald is intended for playing the game on an emulator or nuzlocke purposes. All it pertains to is getting the entire Hoenn Dex (not the National Dex, the same roster is available in that case) without trading and a couple slight modifications to make life easier.

Evolution changes (you cannot get all of these in-game, but they’re all changed for various purposes):

Machoke, Graveler, and Kadabra evolve by happiness.

Scyther evolves at level 26.

Haunter evolves by happiness in the nighttime.

Feebas evolves by happiness in the daytime.

Onix evolves at level 45.

Poliwhirl evolves to Politoed at level 35.

Porygon evolves at level 24.

Slowpoke (to Slowking) and Seadra evolve with Water Stone.

Clamperl evolves via Happiness; Huntail at night and Gorebyss at day.

Also included:

Running indoors is possible as long as you have the Running Shoes, just like in later games.

Hackmew’s RNG fix and Pomeg Berry fix.

Pokemon originally in Ruby and Sapphire but not in Emerald (Lunatone, Zangoose, Meditite, Surskit, and Roselia) are restored but in a limited fashion: all of them are in the first area they appear in those games.

Treecko is found in Petalburg Woods, Mudkip when surfing on Petalburg City’s water, and Torchic in Granite Cave where you give Steven the letter.

Feebas can be fished out of Route 114 with a Good Rod. This was introduced for pure convenience.

The trade in Battle Frontier was altered to give you Jirachi. Meowth has been moved to the Safari Zone.

The Battle Frontier’s PokeMart has been altered: the actual clerk now sells every TM in the game, and the girl beside him sells Evolutionary Stones and every Berry in the game.

Every instance of ALL CAPITAL LETTERS has been removed except for a few scant exceptions.

Ferry Events work now, tickets can be found around Hoenn in normal item pickups. I’m not saying where, but they’re pretty easy to find!

The last Rival battle uses the fully evolved Starter, because you never got to even see it otherwise.

Some things in Pokemon Emerald that were changed to green for no reason have been converted to their original colors.

Improved Pokemon sprites, animations and all.

A few optional patches: actually notice when it’s day and night, Uncensor trainer sprites, input a few newer game mechanics, or make Emerald a tiny bit more like Ruby and Sapphire! More information in the included FAQ.

For a version of this hack with all 386 Pokemon obtainable, please see Complete National Dex Edition. If you’d rather the edited evolutions be done by new evolution stones, check out Stone Clones.