My lizard is the Lizard of Soundtrack
The soundtrack for Lizard is already complete. You can listen to it for free at Bandcamp:
For those of you who want to listen to it in an NES or an emulator, NSF and NSFe versions are also available.
If you need a suitable NSF player, I recommend the open source player that I maintain, NSFPlay. It is available here: http://rainwarrior.ca/projects/nsfplay/
Making this soundtrack has been an interesting challenge. There is a very good NES composing tool called FamiTracker, which I used to do all the composition work. Once composed, I wrote a tool to translate the data made in FamiTracker into the custom sound engine I made for Lizard.
In order to meet the size constraints, I had to fit the entire soundtrack, including all the sound engine code, all music tracks, and all sound effects into a single 32 kilobyte page of the NES ROM. I tried to make every track at least a minute long before it loops, and to have more than one major section to alleviate the fatigue of hearing them again and again. On average I had about 1.5 kilobytes to work with for each track. I found it quite interesting to try to make music in such a tiny space!
By the way, you can also play the soundtrack from the NES ROM of the Demo by holding SELECT + A + LEFT when you reset the game.
Please enjoy the music, and thanks for listening!