Editing Prankster Comet

Prankster Comets are celestial beings that occasionally descend upon a galaxy during the course of [[Super Mario Galaxy]].  While they are within the galaxy's orbit, a new challenge to obtain a [[Power Star]] will be presented; often a previous mission is used, but with an added criteria.  Each of the main fifteen galaxies will present two comet challenges, one being specific to the level and the other being a Purple Comet.  There are five kinds of Prankster Comets in total, as listed below:
=Speedy Comet=
The Speedy Comet is a red comet that challenges Mario to finish a previous mission within a time limit.  If Mario runs out of time, he loses a life.  Losing a life at any time during a Speedy Comet challenge will require Mario to start over from the beginning, despite any checkpoints he would have passed in the normal mission.

The galaxies that play host to the Speedy Comet are:
*[[Locations in Super Mario Galaxy#Good Egg Galaxy|Good Egg Galaxy]] - ''Dino Piranha Speed Run''
*[[Locations in Super Mario Galaxy#Space Junk Galaxy|Space Junk Galaxy]] - ''Pull Star Speed Run''
*[[Locations in Super Mario Galaxy#Dusty Dune Galaxy|Dusty Dune Galaxy]] - ''Sand Blast Speed Run''
*[[Locations in Super Mario Galaxy#Dreadnought Galaxy|Dreadnought Galaxy]] - ''Topman Tribe Speed Run''