Wario, Mario's cousin, has had his own spinoff series, and they encompass two types of games. They have a traditional Type Platforming series called Wario Land. And a Party Game Series called Wario Ware Inc.

In Super Smsh Bros. victory, Wario and his brother Waluigi (who is technically a Mario Character) are playable

 

In addition to the characters, Wario has the following assist trophies

Kat and Ana: When summoned, Kat and Ana use their swords and cross the stage in x formation, dealing high damage and knockback kat & ana