Mario and AJ: Kamek's Revenge

Mario and AJ: Kamek's Revenge is the role-playing game for the PC, released in 2018. It features the two main characters, Mario and AJ, battling Kamek in some levels. It's the second Super Mario RPG game.

Game story
Kamek started to attack the abadoned kingdom, called the Nearby Kingdom. Kamek gets a plan for his book: have revenge against Mario and AJ! In the ruined castle, Bowser and Bowser Jr. are reading a book.