Super Smash Sisters Kerfuffle is an installment in Nintendo's Super Smash Bros line and a crossover between the Super Smash Bros. Kerfuffle and Super Smash Sisters series. It is also the second game in the Super Smash Bros. Kerfuffle series, following Super Smash Bros. Kerfuffle and followed by Super Smash Rivals Kerfuffle. SNK worked on this one alongside NetherRealm to help speed up development time.