If you’ve already selected “Red” but want to get Latios as well, click here.
If you have a Master Ball, you don’t really need to worry about any other preparations, and can skip down to the next section. If you don’t have your Master Ball anymore, read on.
Train your Gengar or Crobat up to at least Level 50. This will ensure that they have enough speed to beat Latios. When leveling up your Gengar or Crobat, make sure that you don’t forget the Mean Look skill. Gengar learns it at Level 13, while Crobat learns it at Level 42. If you want to use the Super Repel trick to make finding Latios easier (see below), use Gengar and keep it at Level 39.
Train Wobbuffet to Level 39 to use the Super Repel trick (see below). Make sure that Wobbuffet is the first Pokémon in your party so that it can trap Latios.
It will also help to have a Pokémon with the Paralyze ability to help keep Latios trapped.
Once you have the White Flute, give it to whichever Pokémon is at the head of your party.
Have a friend trade you their Latios, and then trade it back right away. You simply need to receive it in a trade in order for it to appear in your Pokedex.
Note: If you traded with a friend, use the location in your Pokedex to find Latios instead.
If you traded and are tracking Latios with your Pokedex, don’t leave the route that its on until you’ve found it.
If you have a Master Ball, throw it immediately to catch Latios. Make sure to use your trap ability (Shadow Tag, Mean Look) as soon as the battle begins. If you have Wobbuffet, Mirror Coat is very useful as Latios uses a lot of Special Attacks. Use Paralyze to help keep Latios from fleeing. Use False Swipe to get Latios down to 1 HP. Start throwing Ultra Bars as soon as Latios’s health is low.
While there are codes to get Latios directly, it’s recommended that you use the ticket instead. When you add Pokémon using codes, they can be fairly buggy, so use the ticket instead and catch the Latios as the game expects you to. This will also make the Pokémon legitimate for tournaments, as it is not a hacked Pokemon.
Make sure Pokémon Emerald is running and click the “Cheats” menu. Select “Cheat list. . . " and then click Gameshark. . . to enter a new cheat code. Enter the following codes, creating a new code for each separate box. Enter the “Description” into the “Description” field, and then copy the code into the Code field.