This game is actually a remake of my very first SMBX episode from 2010. The world and every level has been completely remade with updated graphics and gimmicks. There's also a lot of new to it.
One day, Valtteri captures Mario, Luigi, Daisy, Toad and Link and traps them in his home, Valtteri Island. The gang will have to fight Valtteri in order to get out.