How do you become a werewolf in mechquest?

You can't actually become a werewolf in Mechquest. It's not a feature within the game. Mechquest focuses on fighting robots, completing quests, and upgrading your mech.

There are no transformations or mystical creatures like werewolves present in the game.

If you're looking for a game with werewolf transformation, you might want to check out other RPGs or MMOs that offer those features.