nope.
If you have the DS version you can use Action Replay to play as bowser. Unfortunately you can't on the Nintendo 64 version.
i dont think so sorry
021043e8 00000117 d2000000 00000000 020988a4 00000028 d2000000 00000000
no but you CAN beat the first bowser battle and he will give you a key and not the basement is unlocked!
I dont think there are any action replay invincibility codes for Super Mario World on gameboy.
Only with Action Replay Codes.
poo
no
im not telling you
you have to have a action replay
You Could Get A Action Replay And Hack It
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?