So far I'm in Big Island on World 4 my most favorite level ever! I mean everything is so huge. From goombas to giant block everything is all whoah! I freaking hate that giant Hammer Brother because each time he lands on his jumps, it'll make mario temporarily freeze because of the impact of his jumps.
Btw, just in case if you guys noticed, here are some images of the original 8-bit version of Super Mario Bros. 3 game and some other stuff might as well that has been released in Japan and America since almost 17 years ago! =D
The Famicom version of Super Mario Bros. 3, with box and manual:
A comparison of the American and Japanese SMB3 carts:
A small Japanese "Technique Book" released in 1988. It covers Worlds 5-8:
A set of SMB3 Valentine's Day cards from 1990: