Shroob planet

Shroob Planet is the planet where the Shroobs live. It was a monarchy ruled by Princess Shroob and Elder Princess Shroob. This planet is shaped like a purple Mushroom.

In Mario & Luigi: Partners in Time, the Shroobs got tired of living in the planet and wanted a new home so they attacked the Mushroom Kingdom to take over it. Mario, Luigi, Baby Mario and Baby Luigi then defeated the Shroobs.

It is unknown if the Shroob Planet still exists; the prologue for Mario and Luigi: Partners in Time states that the Shroob's planet was dying and withering.