History Trivia / SuperMarioGalaxy2

* MilestoneCelebration: The game was released during the 25th anniversary year of ''VideoGame/SuperMarioBros1''

* MilestoneCelebration: The game was released during the 25th anniversary year of ''VideoGame/SuperMarioBros1''.

* MilestoneCelebration: The game was released during the 25th anniversary year of ''VideoGame/SuperMarioBros1''

* MilestoneCelebration: The game was released during the 25th anniversary year of ''VideoGame/SuperMarioBros1''.

* ExecutiveMeddling: Creator/ShigeruMiyamoto was not exactly thrilled about the addition of story elements in the [[VideoGame/SuperMarioGalaxy original game]] (in the form of an (optional) storybook about Rosalina's backstory) and requested the dev team to scrap the plans they had for this game.

* DoingItForTheArt: Practically the reason this game was made in the first place, since the developers had so many great ideas that they couldn't put into the original.

** The game started as an expansion for the [[VideoGame/SuperMarioGalaxy first game]] that they made into its own game because they had so many ideas. [[HistoryRepeats A similar situation]] occurred roughly a decade later with ''VideoGame/TheLegendofZeldaBreathOfTheWild'' and [[VideoGame/TheLegendOfZeldaTearsOfTheKingdom its sequel]].

* RefittedForSequel: Several mechanics and ideas that were scrapped from the first game, such as Yoshi and Starship Mario, are revisited and realized here.

* FanNickname: The giant Lakitu boss in Yoshi Star Galaxy is the only boss never named in-game. Though the Prima guide calls him King Lakitu, he's commonly referred to as Giga Lakitu. Also Fiery Gobblegut for the rematch with Gobblegut in Battle Belt, and Whimps for the miniature Whomps [[spoiler:that assist the Whomp King in his battle]] in Throwback Galaxy (named Pattan in Japanese).

** The team considered inserting cameos of characters from other Nintendo [=IP=]s into the game, such as characters from ''VideoGame/DonkeyKong'' and ''VideoGame/{{Pikmin}}''. However, [[ExecutiveMeddling this was shot down]] by Creator/ShigeruMiyamoto.

** In an interview, producer Yoshiaki Koizumi mentions that a "Bone Mario" power-up was considered, but declined to go into detail. Unused code and text refers to the "Bone's Curse", which apparently involved Mario assuming a skeleton form that left him invulnerable to damage at the cost of collapsing into a pile of bones like Dry Bones. Mario would have to collect coins to stay alive, and while stepping into light would give him his original form back, it didn't remove the power-up effects (alternatively, Mario would go back to his skeleton form after stepping out of the light), implying that the power-up would be involved in levels where Mario would have to quickly and carefully avoid obstacles and keep himself alive.

** In an interview, producer Yoshiaki Koizumi mentions that a "Bone Mario" power-up was considered, but declined to go into detail. Unused code and text refers to the "Bone's Curse", which apparently involved Mario assuming a skeleton form that left him invulnerable to damage at the cost of collapsing into a pile of bones like Dry Bones. Mario would have to collect coins to stay alive, and while stepping into light would give him his original form back, it didn't remove the power-up effects, implying that the power-up would be involved in levels where Mario would have to quickly and carefully avoid obstacles and keep himself alive.

** The team considered inserting cameos of characters from other Nintendo [=IP=]s into the game, such as characters from ''VideoGame/DonkeyKong'' and ''VideoGame/{{Pikmin}}'', however, [[ExecutiveMeddling this was shot down]] by Creator/ShigeruMiyamoto.

* RefittedForSequel: Several mechanics and ideas that were scrapped from the first game are properly revisited here, Such as Yoshi and Starship Mario, both of which were originally intended for the first game, but were scrapped.