AU where evil queen Sectonia that we faught in triple deluxe is a fake or something and the real Sectionia is held captive inside the dimensional mirror by dark Taranza
But Taranza feels her presence in the mirror so when Meta Knight comes to Floralia to destroy it Taranza begs him not to. Meta gives him 24 hours and Taranza enters the mirror world.
He finds them and fights dark Taranza, saves Sectonia and they both live happily ever after