What is how to evolve munchlax?

Munchlax evolves into Snorlax when leveled up with high friendship (also known as high happiness).

Here's a breakdown:

• Friendship/Happiness: This is a hidden stat that represents how much your Munchlax likes you. You can increase it by:

  • Keeping Munchlax in your party.
  • Winning battles with Munchlax.
  • Giving Munchlax berries that increase happiness (like the Pomeg, Kelpsy, Qualot, Hondew, Grepa, and Tamato berries, although be aware these berries also lower specific EVs).
  • Using Munchlax in trainer battles.
  • Walking with Munchlax in your party.
  • Giving Munchlax massages (if available in your game).
  • Avoiding having Munchlax faint in battle or using bitter items.

• Leveling Up: Once Munchlax has reached a high enough friendship level, simply level it up once. It will evolve into Snorlax.

To check your Munchlax's friendship level, you'll need to find the Friendship Checker in your specific game. The location of this NPC varies between games. They will usually give you an approximate idea of your Pokémon's happiness level through dialogue.

Links for reference:

• High Friendship
• Friendship Checker