Mario & Luigi: The Spooky Ghouls

Mario & Luigi: The Spooky Ghouls (known as Mario & Luigi Spooky RPG 6 in Japan and South Korea, and Mario & Luigi: Arrival of the Ghouls in Europe and Oceania) is the Halloween edition of Mario & Luigi: War of the Kingdoms. All of the bundles feature special Spooky Nintendo Switch console (orange Joy-Cons with black stripes, purple Pro Controller with a skull). The main collectibles here are Spooky Gemstones, left by the Spooky Ghoul tribe. The story takes place between Mario & Luigi: War of the Kingdoms and Super Mario Galaxy. It features 6 different levels and many minigames to play.

Plot
Right after the events of the previous game, Mario's team won the war against the Mushroom Kingdom and Kingdom of Trullialleri... Mario reads Nitro Koopa's relic about the Spooky Ghouls invading the world. Mario ran and sees both Copperpot and the Ghouls. Mario becomes scared, and, escaping to the bakery, sees a thing. It may be the PowerPad 2000 X. It stops at Mario's right hand. Then, Mario sees some vines, and climbs the first one in his way. When he reaches the bakery, nobody is seen. It's completely quiet.

A spike bar targets both Mario and Luigi, who go to the cooking school. Spike laughs, and disappears. The two brothers stop next to the two karts. Mario and Luigi jump on them, and drive to the school. After the school, the brothers and the fighters run to the bakery, with Mario being somewhat late. The magic book told about "The Victorious Pound Cake", and the recipe for the pound cake is empty. When Ring used the magic wand to tell about ingredients, the brothers and the fighters go for the second note. Travel Lakitu dressed up as a Spooky Ghoul catches it quickly.

Travel Lakitu says that he is ready for a Halloween party in Copperpot's hideout. Travel Lakitu closes his eyes and sees Mario and Luigi wearing costumes resembling Ferreasels. Luigi says that everyone wears costumes during Halloween, and all of the "hats" are made by candy corn.