Mario & Luigi 4: The Shroobs Return, is the sequel to Mario & Luigi: Bowser's Inside Story. It, as stated in the title, features the return of the Shroobs from Partners in time.
- Fawful Impersonator
Mario and Luigi are fighting Wario and Waluigi for some reason (Leave reason to the pros.) While they are fighting, Fawful's remaining Supporters attack Bowser's castle in an act of revenge for Fawful's Death in the end of the previous game. During the attack, Bowser's cryo chamber is hit, and the Shroobs (including Princess and Elder Princess Shroob) Unfreeze, alive and well. The Shroobs then try to exact revenge on the Mario Bros, with Wario and Waluigi getting caught in the middle of it. While dealing with the Shroobs, Mario and Luigi must also deal with Fawful's remaining supporters lead by a Fawful impersonator, and the occasional Bowser encounter. Fawful himself doesn't appear as he is dead, and the Impersonator is unmasked by the end. The impersonator may have some connection to the shroobs.............