You Don't. Munchlax was not made yet in that game
Munchlax is a Sinnoh region Pokemon, which when Pokemon Sapphire, Ruby, and Emerald were released, Sinnoh did not exist yet. It is unobtainable in the three games.
you cant munchlax is knew on the Pokemon diamond and pearl national dex.
munchlax didnt exist in the 3rd generation of Pokemon games
in honey trees
Red version was not made to migrate with emerald.
You cannot get a Munchlax in Pokemon Sapphire Version. In D/P/P you can give Snorlax a Full Incense and breed it with a Ditto to get a Munchlax.
There is no space suit in the Emerald Version.
you cant because it doesent properly exist on ruby,sapphire or emerald you probaly confused because may's got one on the series but you wont be able to get a munchlax unless you buy Pokemon diamond,pearl orplatinum . hope i helped
Slather honey on an orange tree and wait 12 hours and you just might get a Munchlax. You could also trade a Snorlax from RES version and breed it with a Ditto, then take the Egg and hatch and you will have a Munchlax.
Go inside one of the cottages in umbrella town during February, June, and October. You can trade a munchlax for certain pokemon.
Emerald can trade with Leaf Green but not Pokemon Red
You can buy emerald version in Game Stop near Madison