who plays super mario sunshin?

Question

I need to khow how to git a little book.becouse in the levle where you go into a bottle you go in space with a HIDDEN door. if you use the thing that changes the view you could see a book. and if your a MARIO fan then you know YOU CANT OPEN DOORS UNDER WATER. HELP PLEASE.

Answer 1

It's a glitch, supostly it was for some type of GBA connectively that never came to be.

Answer 2

Unused data, probably. Unused data is just stuff in videogames that weren't taken out, if if it was useless. Or maybe it's an easter egg. Many people have talked about a book for a looong time, but people never found a use for it.