Shroob Mother Ship

The Shroob Mother Ship (Japanese: マザーシップ Mothership) is a ship that Princess Shroob uses to travel along with her Shroobs. It looks like a huge pink Shroob UFO and may be the spaceship the Shroobs came to Mushroom World in. The Shroob Mother Ship appears many times over the course of the game.

Shroob Mother Ship Level
After Mario and Luigi defeat Bowser and Baby Bowser and saving Peach in Thwomp Caverns, the Shroob Mother Ship sucks Mario, Luigi, the babies (Baby Mario and Baby Luigi) and Peach in. Inside the Mario Bros. find out that Princess Shroob was dressed as Peach. When Princess Shroob is about to suck the vim out of Mario and company, Kylie Koopa, dressed as a Shroob, saves the brothers. The Mario Bros. along with Kylie Koopa go to the second floor, and put a key, that Kylie got in a key hole only to drop them in Toad Town, which is destroyed. Kylie, however, lands in Yoshi's Island.

The level itself is largely linear and pseudo-2D, with long, straight sections which wrap around the perimeter of the ship and overlook a vast pool of slime in which several Shroobs are swimming. Guardian Shroobs patrol the level, and can be battled for experience points.

Sadly, the Shroob Mother Ship is the only full-length level in the game that cannot be accessed again once the four heroes leave. It is therefore a good idea to search the level carefully to make sure that every item and bean has been collected before moving on.

Destruction
Later in the final area, the Mario Bros. use a Shroob UFO to destroy various Shroob UFOs, and then Mario and Co. fight against the Shroob Mother Ship. After defeated, the Shroob Mother Ship will fall down, breaking part of the Shroob Castle, and when the Mario Bros. go to it, the final battle begins.