in the last level
There is no game called Super Mario 63. There is one called Super Mario 64. On the final level of it you have to fight and defeat Bowser.
Beat bowser, and huge bowser on the last level.
To the final Bowser level, Bowser in the Sky.
fight the 2nd bowser
You have to defeat Bowser with Minny Mario on the last level of world 5.
When you complete the bowser level after you get 50 stars and you have to complete the bowser level twice to get him
it depends on which Mario game i would probably know if it was Mario bros 3,super Mario 64 and super Mario galaxy.
There is no Bowser in Board Bowser's sub in Super Mario 64. But, by any chance, are you talking about Super Mario 64 DS?
You have to beat the Bowser in the Fire Sea level
you need to get the key from bowser in the basement
The first Mario game with Bowser was Super Mario Brothers.
Giga bowser is not unlockable in Super Mario Galaxy. That character does not even exist in Super Mario Galaxy.