The Hidden Block Card is a recurring item in the Mario Party series. It first appears in Super Mario Party and returns in Mario Party Superstars.
Description[]
Using the item causes a Hidden Block to appear, and it rewards either coins or a Star, depending on where the roulette lands; if the roulette lands on the transparent area, it awards coins, but if it lands in the smaller white area, the reward is Star.
In Mario Party series[]
Super Mario Party[]
Hidden Block Cards are exclusive to the Mario Party mode.
Mario Party Superstars[]
A Hidden Block Card can only be obtained from either an Item Bag or during the Last Five Turns Event.