credibility takes a tiny hit but everything else got a perfect hit.  I got PTSD triggered of a memory of 1998 or 1999 downloading random zip files from sites in Asia to find out some Japanese Famicom title that was such a new dump nobody knew what game it was or something.  This would be 100% one of the dungeon levels of (some unknown game).

Outstanding job.  Maybe a little too serious for the first SMB1 because that initial game still had cute-factor to it and not seriousness.  

If you do rate my submission back, remember the real links are out on here:

https://exedexes1.itch.io/smb1-underground

i got caught by the mistake where you submit the last jam's project on accident if you dont move some default settings.

Considering the theme, I understand the atonal direction of the piece, but some of the melodic choice still sound wrong imo, especially when you think about what is Mario as a game, I don't see what justify such experimental polytonal moments.

Fits great with the theme, I would totally see a fan made mario game or a remake with this tune ! GJ !

Cool rhythm. Nice work!

Nice take, it fits very well the original game, good job!

Pretty experimental take, respecting the original sound palette with some twisted melodic elements.