? Coin

A Question Coin is a special Coin in Super Mario Galaxy. When one is obtained one of the following occurs:


 * A Mario theme will play and a line of musical notes will appear for Mario to collect, usually causing a 1-Up Mushroom to appear.


 * An accumulation of Star Bits or Coins will appear for Mario to collect.


 * A power-up will appear.

They appear in few stages.