The Purple Coin is a coin in Super Mario Galaxy. There are purple colored Coins with a star on them. They only appear when a Purple Comet is orbiting a galaxy. The player must always collect 100 purple coins to make a Power Star appear. This is similar in Super Mario Sunshine where you had to collect 100 coins to make a Shine Sprite appear. Purple Coin missions may sometimes have a time limit. Within the time limit there are 150 Purple Coins to collect. However, you must only collect 100 to make the Power Star appear. When this happens, you must find and grab the Power Star before time is up. 2 Purple Coin missions are not activated by a Purple Comet- Gateway Galaxy, and Grand Finale Galaxy. Purple Coins do not restore the player's health when collected, unlike the Coin.