The best replacement for super mario galaxy is super mario galaxy 2.

The best alternatives to super mario galaxy are rated as following:
★★★★★  super mario galaxy 2
★★★★  super mario 64
★★★  super mario sunshine
★★★  galaxy 2
★★  twilight princess
★★  new super mario bros
★  sonic colors
★  super smash bros brawl
★  mario 64
★  super paper mario
  zelda
  paper mario
  mario party 8
  mario kart wii
  super mario bros wii
  legend of zelda twilight princess
  super mario wii
  super mario bros
  super smash brothers brawl

Your alternative for super mario galaxy is not listed? Suggest!
Speaking about super mario galaxy, one probably shouldn't forget about luigi.

Other search terms related to super mario galaxy and their ratings are:
★★★★★ luigi
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super mario galaxy
super mario galaxy 2
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