Matilde Monster is Kamma Monster mother and Hugglemonsters friend. She was when she was younger in the band Grr Power. She is also the mother of Roberto, Oscar and possible Hunter (he says that he is Roberto twin make him his brother or he is the adoptive brother who is lookin gthe same & call him twin). Her two sons were adopted by the Snifflemonster family. Althought he was engaged with the Mr. Munderclaw the son of the Roartonio, he married his "father-in-law" (the grandpa of his son).