Super Mario Flash

[Lario]

http://www.pouetpu-games.com/index.php?section=2&game_id=1

Merely a game where you can make your own levels and share them only. However, there's several requirements...

EDIT: Oh, and I'm LOLER.

 

[Nerdy Guy]

I remember trying to use that before getting Lunar Magic to edit the SMW ROM.
I gave up on Super Mario Flash when I found out I had to keep a bigass code to play the level.