Shroob

The Shroobs are a race of aliens that attack The Mushroom Kingdom of the past when Mario and Luigi are babies in the game Mario & Luigi: Partners in Time. They are a purple, mushroom-like species ruled by Princess Shroob and her older sister. Most Shroobs carry ray guns with them.

They possess a massive fleet of flying saucers, which are powered by the vim of the Toads. The saucers are capable of shooting lasers and energy beams.