Hey guys, I looked it up and apparently you get Mama Mush by going through the ice fields and running into the little slush without the cookie.

Well I think I've managed to do this multiple times, I've been visiting the ice fields frequently lately to try and unlock her, but I haven't unlocked her yet. Is this the correct page where you're supposed to get her on?

Please help!

I think it's a random event of finding the slush cub without the cookie so it may not happen right away. I know it took me forever to unlock her. She should appear under the secret tab in the challenger section of the coliseum if you haven't checked already.

Oh nooooo... That explains it. Cuz I've run into that page so many times and she's not in the coliseum (I checked the secret tab)

I guess it will take me forever too. Do you know how long it is in between ice fields visits? Is it 1 hour like the crypts?

It's a 60 min wait :/ I think you should see text to the effect of the mother attacking you and then a battle event at the top of the page from mama mush.