fixed the URL that someone else added to my previous submission. not sure why the NINJA disclaimer is needed at all? it's not like the online ROM patcher doesn't support it
Super Mario Bros. DX is a complete graphics upgrade for Super Mario Bros., based partly on Super Mario Bros. 3 including a combination of directly-imported, modified, and entirely new graphics. Special attention has been paid to color. This hack may be combined with separate level hacks, or (if credited) used as a springboard for your own hacks.
Zip file includes a new 3.4 version as well as the previous major publicly released versions.