An "evil" version of the Star in Mario Party, given by Bowser and then in Jamboree by Impostor Bowser. Grants the player -1 to their star count. Only in Mario Party Jamboree do you finally hear the announcer say the word "Ztar" finally revealing how to say it (Ze-tar, sounds similar to the instrument sitar.)
Defeated and somber announcer "You......got a Ztar!" Luigi: "Oh no, no no!"