Zinga, you can download the music. Go to the credits, then click Download Soundtrack. It'll take you to the song on Kongregate. There's a Newgrounds link in the song description, download it from there ;)
Excellent game, great storyline, awesome graphics, squishy sound effects, eerie music. 5/5.
Btw, I just found the spread fire upgrade today after playing numerous times. It's in the cargo area, when the level starts, go up the crates, then just keep following the passage. You will eventually come to a fork, go left. Cant miss it ;)
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