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Question & Answers
Answer from: harrisj06
I don't think you can. the only way to unlock him is get all of mario's stars.
Answer from: supershadow775
You absolutely cant. you must get all stars and beat the final level.
Answer from: cellcell8
You can't. The only way is to get him in ghostly galaxy.
Answer from: Hyper
You cant only if you beat the game then talk to Rosalina and ask to fight bowser again that's the only way to get Luigi without cheats.
Answer from: Boo vs dry bone
Get 120 stars then complete the last level then whatch the credits to get (mario complete song) LUIGI!