In my words, you should catch it using the friendship Poké Ball, have level up, and it evolves.
To evolve the Munchlax you just have to level it up when its holding the leftovers.
You evolve munchlax by training it to the best of your abilities so munchlax can evolve with full friendship. Hints: - use feathers - train it at the elite four with powerful Pokemon holding a lucky egg or an experience share - use rare candies - have it in your party to train with it Etc...
Go to the GTS and if you have Munchlax in your Pokedex, send in a Pokemon and ask for a Munchlax.
Snorlax does not evolve. However, he does evolve from Munchlax. There is no specific level that Munchlax evolves. If he levels up with a high happiness rating, he will evolve into Snorlax.
Catch a munchlax with sweet honey and then evolve it
It evolves via happiness
no
raise its happyness to max
let munchlax evolve
It evovles with max happiness
by leveling up to level 78
You need to get it's friendship to full.