Mario & Dan: Rise of Dark Dan

Mario & Dan: Rise of Dark Dan is a game in the Mario Series. More specifically its a game in the Mario & Dan Series.

Plot:
Bowser kidnaps Dan Koopa and Mario goes to save him. However, Bowser clones Dan and it creates Dark Dan. Dark Dan throws Mario, Dan, and Bowser out of his castle and plots to take over the mushroom kingdom. Mario, Dan, and Bowser team up to try and destroy it. Once they do, Dark Dan explodes, and Bowser moves back into his castle.