Super Mario 63 Cheats :
ULTIMATE TILESET CHEAT(disclaimer inside)
DISCLAIMER:this cheat is best to be used when you have a hard time collecting star coins.
at the menu type this in:CHEAT
turn on "toggle shine sprites on star map" mow start a file
pause the game and click star map. go select all shine sprites and star coins(that are blue).click the first one.
now go to bob-omb battle field and get the star coin.
After that click save now go to the level editor you will see you unlocked everything!