Q&A for How to Evolve Feebas in Pokémon Emerald

It's the exact same method. The two roms are pretty much the same except Emerald has Pokemon from all generations.

It can only be found on six randomly generated tiles on Route 119 by fishing. Using a super rod for this helps a lot, as the only other Pokemon you can catch with a super rod there is Carvanha.

Yep. Just plant them into a spot of soft soil, and it will grow in about 3 days. Collect them and replant.

If you mean on an emulated version of the game, then yes. A ROM should be the exact same as the cartridge.

No, you just need access to the super rod (get it in Mossdeep city), surf (the balance badge) and the Pokeblock (key item).

That only messes up time-based events. You should still be able to get berries and max out the feebas's beauty.

You need Feebas to hold the prism scale and trade it with another person to evolve it.

You can get the master ball in team Aqua/Magma's lair (it will seal up after catching/defeating Kyogre/Groudon, so get it before!) or from winning the lottery at the Lilycove store. (You enter the lottery by talking to the receptionist on the right on the first floor.) Trade with many different people before entering, as the time is broken so you can only do it once. On the lottery is a ticket with an ID number; if you have a Pokemon with that ID, you will receive another master ball.

Once you have increased Feebas's cuteness, you cannot reset it. If Beauty did not increase when you fed the indigo Pokeblocks, you will have to get another Feebas and restart. Thankfully, if you did not change the "Trendy Phase" at Deford since catching Feebas, You will be able to catch a new one in the same spot as the first.

You can find the Prism Scale in Undella Town and Route 13 in Pokemon Black.

Golbat needs a high friendship in order to evolve. Feed it berries that increase friendship and then level it up.