ROM Hack NSMB level editor?

[spinal_cord]

I have just heard that there is a level editor for new super mario bros. can anyone shed some light on this for me? google only found me dead links.

 

[Aygen]

O.o ... If there is ... Omg, I want some more Self Completing Levels!

 

[DrediKnight]

http://treeki.googlepages.com/