Introducing El Calavera! is the fifth level of Spooky Trails in Mario + Rabbids Kingdom Battle. Completing this level unlocks Rabbid Yoshi as a playable character.
The only part of the level features Calavera as a boss. He is behind partial cover, while a Spooky Smasher is behind partial cover and two Spooky Peek-a-Boos are behind full cover.