Part 3 of Mario, Luigi and their baby counterparts journey through time to save the mushroom kingdom from the Shroob alien race
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https://www.youtube.com/watch?v=BWMIU37MtMM
While in Little Fungitown, Mario wins a Invincishroom at an arcade and catches Bean fever and needs Crabbie grass which is in Guffawha Ruins which is supposedly home to frightful monsters, Luigi is terrified but after being hynotized to think he's Mario he goes there and retrieves the Crabbie grass and gives it to Mario, he recovers but Cackletta in Bowser's body calling herself Bowletta kidnaps Princess Peach and demands that the 4 parts of the Bean star are collected and brought to her
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https://www.youtube.com/watch?v=cHTA5dvu7g0
The 7 Shine sprites of Gelato beach, chasing away Shadow Mario again and Princess Peach gets kidnapped again! Shine sprites= Dune bud sand castle secret, mirror madness! tilt, slam, bam!, Wiggler ahoy! Full steam ahead!, the sand bird is born, II Paintissimo's sand sprint, red coins in the coral reef and It's Shadow Mario! after him!
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https://www.youtube.com/watch?v=smVOb4DO3aM