you will need to get the roms yourself. for smb1 and the lost levels, you need the all stars rom (specific hash), and will need to extract them with the python script in the other folder. you do need zstandard iirc, so pip install zstandard . if you have trouble with python3, use pip2 and python2, and it should install and work. I've helped a few people get this compiled and working on discord. for smb1 and the lost levels, you need to drag and drop the file into the exe or you can use the provided, simple bats.