Seasaw Space Security Squad Update 1.6.1

Background: During initial development of this game, I transcribed the lovely piece "Mad Bossa" by Spring Spring to Deflemask from some other tracker (https://opengameart.org/content/mad-bossa). It sounded great in isolation, but in the actual game there was an important part that conflicted with sound effects, so the song sounded like it was getting stomped on.

At the time, I couldn't prioritize fixing it, but I recently learned how to use Furnace to do some powerful transformations that made rearranging the track much easier. I also patched the code that plays sfx so that we can now hear more effects simultaneously. This game's audio issues have been bugging me for a while, so I'm happy to have finally been able to fix it so that Mad Bossa really shines on the YM2612.

Have a listen! I think it's really nice now!

Another thing that was bothering me was that the four different player avatars have different colors, but the same lightness value. That made it hard to tell them apart even if you're not colorblind. I took the opportunity to tweak the colors so that it should be a little easier to tell the players apart.