You can't unless if it is Super 64 Mario DS. You have to fight the secret boss and get the key and unlock Luigi in the room on top of the water world.
If you mean Super Mario 63 as in the flash game, it takes between 16 and 48. I'm not really sure because i already unlocked Luigi and it doesn't say how many. My guess would be about 25. To find out, go to the room with the guy that is watching over the shine sprites and go to the right down the stairs. Go past the level creator to the doors and try to go in the second door. It will tell you how many you need. If you can't go down the stairs, i think you need to get 5 star coins before you can do that.
Its mario's brother luigi. You can play him instead of mario if you get 32 star coins.
I think you need 100 coins to get a star.
There are three star coins in each level.
you need 14 stars
Nine
314
203 star coins
You need 8 red coins to collect the star.
there are 240 star coins. 3 in each level
64 shine sprites and star coins on super Mario 63 on newgrounds.com
240: 30 per level
there are 100 worlds
It maxes out at 999. But I've never seen a non-hacker with that many coins.
240 blue coins you need 120 shines o completely finish the game
I dont know probably 500 or around that.Maybe more
Super Mario Bros. is a popular game which was released to play with the Nintendo gaming system. The original Super Mario Bros was released in 1985. Since then many more have been released including Super Mario Bros. Special, Super Mario Bros 2, Super Mario Land, Super Mario World, Super Mario Cart and Super Mario All Stars. There are over 200 games available which fall under the Super Mario Bros. Games.
There are 35.(+the 100 coins in each 15 stages)
you can get 64 shine sprites and 64 star coins.