My friend worked for Imagic in the early 80's. He was getting rid of some old belongings and showed me an untitled vic 20 prototype cart. He said he worked on moonsweeper for the commodore, I always figure c64, but this is obviously a vic-20 cart. I wish I could get access to a vic 20 and see if its actually moonsweeper. Anyone know a good place in SF Bay Area to test old cartridges?