Ztar

From The DS Ultimate Wiki

The Ztar appears in the Mario Parties, taking away a star in your possesion.

Where they come from

Another stupid invention of Bowser's. They are rare, but CAN be seen in hidden blocks which you might find along the way. Try avoiding them even if there is no way to know where they are apart if you use a hidden block sensor, which get you to throw a number to get you to a hidden block. But do use them! They can give you great items. But, you get them extremely rarely... So try not to bump into a Ztar!

The Ztars appearance

Ooooh, their look is quite evil. Their Black and shiny coat plus their evil white eyes definetely means that they are evil. They swoosh into you and steal a pretty star which belongs to you. Not very nice of them.