Xiaolin Showdown (2003)

In the very first episode the characters of Omi and Jack Spicer are "pantsed", revealing their underwear as briefs and boxer shorts, respectively. The character of Tubbimura is depicted with pants too small for his girth, resulting in exposed midriff and what resembles an open fly just beneath his belly button.

The series features a lot of martial arts action, but rarely involves any serious injury; no blood.

Some bathroom humor.

Some scenes in which the villains of the series appear to have achieved victory might be frightening to younger children.