How do you win Super Mario galaxy?

Answer 1

You have to get all 120 power stars and you have to beat Super Bowser again! When the credits are done a message flashes ''Prankster Comets appeared!'' If a galaxy has 2 power stars, 2 green stars appear. You'll need to all 240 stars to unlock the grnd master galaxy! GOOD LUCK!!!

If you get all 120 Power Stars and beat the final boss again, Green Star Prankster Comets will appear after a cutscene. Green Stars are hidden all over each level, and there is one for each Power Star.Including the special world, there are 200 stars total without green stars.

Answer 2

Finish the game and defeat Bowser. Then, you get a message saying you have unlocked the purple coin comet.

Answer 3

Play the game. Collect 121 stars with Mario and Luigi. When all else fails, look up a walkthrough or buy the Prima Official Strategy Guide.

Answer 4

You have to collect all 120 stars with mario, which unlocks Luigi, and then you have to do the same with Luigi, which unlocks the final level.

Answer 5

go to the engine room and win over bowser there. then u will have enough power to go to his planets. then defeat him there.

Answer 6

You have to buy it from the hungry Luma outside of the terrace.