Gateway's Purple Coins

Gateway's Purple Coins is the second mission of the Gateway Galaxy in Super Mario Galaxy. The objective is to collect all the Purple Coins around the planet by utilizing the Red Star power-up. This mission is only made accessible after the Gate has been unlocked on the Comet Observatory.

Mission
When Mario enters the galaxy during the mission's first playthrough, Rosalina will greet him. A Red Luma notices how much Rosalina trusts Mario and gives Mario a challenge of collecting 100 Purple Coins which he has scattered around the planet to earn his trust as well. There are seventy Purple Coins located on the planet itself and thirty Purple Coins in the air. Mario must use the new Red Star power-up that gives him the ability of flight to reach the thirty Purple Coins floating in the air. Successful completion of this mission will award Mario the game's sole Red Power Star, and also allows him to use the Red Star power-up in the Comet Observatory whenever he wants. If the mission is replayed, the Red Luma will appear in Rosalina's place and her cutscene is skipped.

Names in other languages
Monete Viola nel Varco Celestiale