Editing Green Star

|image=[[File:Green Star Artwork - Super Mario 3D World.png|200x200px]]<br>Artwork from ''[[Super Mario 3D World]]''

{{quote|AY-O! Did ya see that? Those [[Prankster Comet]]s were green! That means there are Green Stars around now! Those must be the cosmic jewels I keep hearing about! Those Green Stars are pretty hard to find, so keep your eyes and ears peeled! Take it away, Captain!|Lubba|Super Mario Galaxy 2}}

[[File:Greenstar.png|thumb|Green Star artwork for ''[[Super Mario Galaxy]]'']]

{{quote|The Green Star Challenge Is On!|Save file description|Super Mario Galaxy 2}}

In ''[[Super Mario Galaxy 2]]'', there are a total of 120 Green Stars to be found. These are only available once the player collects 120 regular Power Stars and then completes the first mission of [[Bowser's Galaxy Generator]] again. Each galaxy has the same number of Green Stars as regular Power Stars (except the [[Grandmaster Galaxy]], which has no Green Stars at all, as collecting all of the Green Stars is required to unlock this galaxy). When collecting Green Stars, the player will have to do a certain mission of a galaxy again. In some cases, the Green Stars in a galaxy can be collected in any order (e.g. "Green Star 2" can be collected during the Green Star 1 mission), but in general, they can only be collected when playing a Green Star mission. Green Stars are usually found in hard to reach or hidden areas of the galaxies. Additionally, the Green Stars only appear when a galaxy is orbited by a Green Comet, which will appear once they are unlocked.

[[File:SM3DW Screenshot E3 Press Kit 06.png|thumb|250px|[[Mario]] near a Green Star in [[Clear Pipe Cruise|World 6-1]].]]

Green Stars serve as the main collectible items in ''[[Super Mario 3D World]]'' and the ''Super Mario 3D World'' mode of ''[[Super Mario 3D World + Bowser's Fury]]''. They function similarly to [[Star Medal]]s from ''[[Super Mario 3D Land]]'', and by extension, [[Star Coin]]s from the ''[[New Super Mario Bros. (disambiguation)|New Super Mario Bros.]]'' games, and share the same sound effects as the former. All the regular courses have three of them, Enemy Battles have one, [[Captain Toad]] courses have five, and there can be five, ten, or thirty Green Stars in the [[Mystery House]]s. In [[Enemy Battles]], the player needs to defeat all the enemies to receive the Green Star. In main courses, they are scattered around in hidden areas just like Star Medals. In [[Captain Toad's Adventures]] levels, the objective is to solve the course's puzzles and to obtain all five Green Stars. In Mystery Houses, the player needs to complete one of the ten-second challenges to receive one. There are 380 Green Stars in total, and each of them additionally grants the player 4000 points. Some levels on the World Map require the player to have a certain number of Green Stars to play the level and advance past it.

Green Stars also appear exclusively in the [[Wii U]] version of ''[[Captain Toad: Treasure Tracker]]''. After the end credits, a Green Star is falling across the sky that [[Captain Toad]] chases after. The star falls down the [[Clear Pipe]] leading to the [[Sprixie Kingdom]] from ''Super Mario 3D World'' which Captain Toad also enters. Green Stars also appear in the ''Super Mario 3D World'' levels in the [[Bonus Episode]]; however, instead of functioning like [[Super Gem]]s (the equivalent item in the game), they replace [[Power Star]]s from regular levels at the end of a level, similar to the ''Super Mario Galaxy'' games.

The Green Star in the ending is replaced by the [[Odyssey]] in the [[Captain Toad: Treasure Tracker (Nintendo Switch / Nintendo 3DS)|Nintendo 3DS and Nintendo Switch versions]] to reflect the Bonus Episode this time being based on ''[[Super Mario Odyssey]]''.