Ztar
Ztars (also known as Shadow Stars in Mario Party 6, Dark Stars in the North American version of Mario Party 7, and Z-Stars in the PAL versions of Mario Party 7) are black counterparts to Stars found mostly within the Mario Party series. Instead of granting the player a Star, it takes away one in the player's possession.
Ztar first appears Super Mario RPG: Legend of the Seven Stars when the special attack Dark Star is used. They later appeared in Mario Party, where a Ztar is the Bowser Bogus item for Mario's Rainbow Castle. In this game, it does not count as a negative star. In Mario Party 2, if the player landed on a Bowser space and got the event called "Bowser's Multiplying Toads", Bowser would create two Toads. One of them is real and one of them is fake. If the player runs into one it will offer a "Star" for 20 coins and, once paid, either a Star or Ztar will appear. If a Ztar appears, it won't count to the amount of Stars the player has so twenty coins are wasted. However the other Toad will still offer a real Star. Mario Party 4 features a Ztar hosting the volleyball game in Thwomp's Backroom Ball.
In Mario Party 5, if a player landed on a Bowser Space and had at least one star, Bowser would occasionally give the player a Ztar Star, which would subtract one star from the player's total. It is impossible to go below zero stars.
Ztars were renamed as Shadow Stars during the events of Mario Party 6. In Clockwork Castle, if Bowser encounters a player, he will give the player a Shadow Star if the player has one or more Stars. This will cause the player to lose one of his or her Stars. If the player has no Stars, Bowser will give him or her a Special Shadow Star, which takes away Coins instead. Bowser will also give the player a Shadow Star if he or she lands on Bowser's Battle Yacht in Castaway Bay. Shadow Stars also make a minor cameo in the comparison quiz section of Speak Up.
In Mario Party 7, they were again renamed to Dark Stars. In one of the Green Spaces in Grand Canal, the player must choose a chest after the chests are randomized by a Blooper. One of the chests holds a Dark Star. If the player chooses this chest, he/she must take it. In Neon Heights, at Bowser Time, Bowser sometimes puts a Dark Star in one of the chests. If the player pays Koopa Kid for this chest, they will be forced to take the Dark Star inside.
In Mario Party DS, they were renamed Ztars again, and occasionally appear in Hidden Blocks. If a player is unfortunate enough to get one, he/she will lose a Star. Also a figure called Ztar appears at the same time the Star figure appears.The Ztar is also Grey and Un-shiny instaed of Yellow and shinyng.
