Curse of the Mummy's Tomb / Freaky the Snowman
S1:E10
1999
IMDb
A) The kids visit the Museum and see an Egyptian Mummy, somehow it comes to live and walks around freely. The gang has to stop it before it is too late! B) Everyone makes fun of Mona's snowman, Freaky. Now Freaky, tired of it, is ready to take revenge.