SMB3 Rare, unused, and unknown sprites.

[Ngamer01]

I'm sorry, but this is nothing but cheap edits and flips.

http://themushroomkingdom.net/smb3_lost.shtml

This is all the known secret stuff from the game's code, but there's no leaked beta on the net. In fact the only beta images I know of are the beta version of World 1 and an unused stage on the back of some NES Mario 3 boxes.

Also the Famicom version of Mario 3 didn't have what the OP posted.