If you got all 120 stars with him then you can go to the grand finale galaxy and get 100 purple coins to get the 121st star. If you have already done that, you are completely finished with the game.
after you beat cacklettas spirit prince peasley says that he set the bombs and he put on the timer and you have to get out of the castle fast
Mario Luigi (Beat the Game)
Ghosts of Luigi are just there for u to beat
Yes, You can play as Luigi in Super Mario Galaxy 1 & 2. In Super Mario Galaxy 1, however, you need to really want him. He'll only be playable after collecting 120 stars with Mario (Double what's needed to beat the game).
You meet him a lot on different galaxies, but when you beat the last level (i think) you can play as Luigi any time!
Get 60 stars to beat the game. Get all 120 stars to be able to beat the game again as Luigi. Get all 120 stars again as Luigi to unlock Grand Finale Galaxy for Mario and Luigi making 121 stars for both profiles (a whopping 242 total)
Simple, beat the game. Walk into after you beat the game and you have the option of being Luigi whenever you want!
You don't
yes. if you collect all the stars and beat bowser again, you can play as luigi.
If you have 119 stars, go look through all the galaxies on the Universe Map and find it. If you have 120 stars, it depends if you have Mario or Luigi. If you have Mario, defeat Bowser again and you can play as Luigi. If you're playing as Luigi, defeat Bowser again and that unlocks the Grand Finale Galaxy. Go there with both Mario and Luigi to have a total of 242 stars. And that's all of Super Mario Galaxy.
Get all 120 stars, then beat him again. You will unlock Luigi. If you already have, then you've beaten the game.
If either Mario or Luigi is under level 17 at the end, chakron will say something different at the end.
If you beat every mission, it will give you all the stars, of course. Remember, after you get all 120 stars as Mario, you unlock Luigi. After getting all 120 stars as Luigi, you unlock a bonus star for Mario and Luigi, giving you a grand total of 242 stars to shoot for!