Wow, I'm a little surprised and embarrassed that people are using my repository. Unfortunately I don't have much intention of maintaining it anymore, since I've mostly lost interest in DK hacking. (It turned out to be harder than I thought it was going to be, even with all the great reverse-engineering work that has been done.) I would still certainly look at pull requests, but nobody ever makes any...
By the way, I want to make it clear that very little of the work on dkong.asm is mine. This disassembly is from a wiki that I think no longer exists; I made a start at cleaning it up in a way that makes it easier to hack, but there's just too much work left to do.
dkong-snd.asm is entirely my work, though, and I'm damn proud of it.