Happy Halloween everybody! I hope you guys are enjoying this fabulous holiday. These superstars are here to show off their costumes.
 
Mario Series:  
Mario as Cuphead  
Luigi as Mugman  
Peach as her New Nintendo 3DS appearance  
Bowser as Dry Bowser (or just Dry Bowser)  
Donkey Kong as his New Nintendo 3DS appearance  
Wario as his WarioWare: D.I.Y. appearance
 
MLP Equestria Girls Series:  
Rainbow Dash as Mario  
Fluttershy as Luigi  
Rarity as Wario  
Twilight as Yoshi  
Applejack as Rumor Honeybottoms  
Pinkie Pie as Baroness Von Bon Bon  
Sunset Shimmer as Ms. Chalice  
Juniper Montage as Mr. King Dice  
Adagio Dazzle as The Devil
 
Cuphead Series:  
Cuphead as Mario  
Mugman as Luigi  
Baroness Von Bon Bon as Princess Peach  
Cala Maria as Princess Daisy  
Hilda Berg as Rosalina  
Djimmi the Great as Toad  
Rumor Honeybottoms as Honey Queen
 
And of course, Mariclaw(me) as Cuphead
 
Update: I added the crowns of Bon Bon, Cala Maria, and Hilda to look like the three princesses. I also included the cape of Honey Queen to Rumor. Now it looks perfect, everyone is enjoying Halloween!
 
Happy Halloween!!!
 
 
Mario characters: Nintendo  
MLP characters: Hasbro  
Cuphead characters: Studio MDHR  
Rainbow Dash, Fluttershy, Rarity, and Twilight in Mario costumes: myself  
Applejack, Pinkie Pie, Sunset, Juniper, and Adagio in Cuphead costumes: user15432  
Cuphead and Mugman in Mario Bros. Costumes: Twin-Gamer