i think it has cool ideas, and sometimes said ideas are implemented fairly well, but sometimes the ideas don't really work too well. the level design kinda fell flat for me 9 times out of 10.

the soundfont they used for the music also doesn't really work for the songs they chose in my opinion, but some song choices were pretty cool such as the underground theme from yoshi's island.

i think this rom hack gave me a newfound appreciation for the work that goes into the actual NSMB games over at nintendo.

overall i didn't hate it but i think it could with some revisions maybe.