Toppa is a living witch hat and Erika's sidekick in TAO: Rize of the Ying-Yang. At certain times, he acts as a sort of comic relief.
Toppa appears as a purple and oversized witch hat with a red underlayer. Perhaps the most disturbing and interesting feature it the twisted, smirking mouth that seperates the top of the hat from the bottom.
- Toppa is notably the one major character with the least amount of dialogue. However, he has the honor of being the last character to speak in the story.