Marching Happily Into the Battlefield

Battle of the Bits Winter Chip 3 entry. It got 40th place out of 89 entries.

I think there was some 2 hours 'til the deadline, so I decided to do a TIA quickie. As could be expected, I ran into a ton of problems and ended up with a horribly out of tune end result, but it pretty much portrays what I expected it to. Everything after 0:37 is totally random, caused by me pointing to nonexistent patterns!
Two channels, each capable of 8 waveforms. I really want to play around more with this format...

Original description:
These soldiers are excited to be going into a real live battle! This'll be so much fun!
OH SHIT BOMBARDMENT AGGHHHHHHHHHH

.BIN ROM here: http://battleofthebits.org/donload/entry/1692/Marching%20Happily%20Into%20The%20Battlefield.bin