Prototype #49 - Sound Test and Music update!

Prototype #49 is here and it brings higher quality music, more music, and a shiny new sound test menu to hear it in. If you like the soundtrack, remember it's available as a free download at https://fanfaregames.bandcamp.com/album/maru-island-ost

(Also minor edits to player AI included, but nothing you're likely to notice.)

As always, your feedback is welcome and appreciated!