Gravity Star Speed Run
Gravity Star Speed Run is the second mission of Bowser's Gravity Gauntlet in Super Mario Galaxy 2. This mission can only be activated if the player collected the Comet Medal in the previous mission and while a Prankster Comet is in orbit. The objective of this mission is to make their way through the previous mission once again, this time with the player having a time limit, and not battling Bowser at the end.
The Speedy Comet must be in orbit in order to selection this mission. This Power Star is at the very end of Bowser's Castle, on the left side of where the launch star was. To collect the power star, the player must wall jump on the wall that separates half on the final part to collect the star, and Mario must do this within the time alloted to finish the level by getting clocks along the way.
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