Hidde's typical appearance is common to real ninjas. He wears black suit always when he's seen. It can be seen his mask has changed many times during series, but it's always black. Sometimes it has a single hole for both of eyes, sometimes each hole for each eye and sometimes only one hole on one eye. Hidde always has something on his back, like sword or stick. Sometimes, when his suit is ripped off, it can be noticed Hidde's very muscular.