In Pokemon chaos black how do you get through mt. moom?

It seems you're referring to a specific Pokemon game called "Chaos Black". However, there is no official Pokemon game with that name. Perhaps you are thinking of a fan-made ROM hack?

To provide accurate information, I need to know:

* What specific ROM hack of Pokemon are you playing? The name of the hack (like "Chaos Black") is crucial.

* Where in the game are you stuck? Are you facing a specific puzzle, a trainer, or just trying to navigate the mountain?

Once you tell me more about the game and your problem, I can help you find the solution!