A friend of mine gave me three games; TV Ping Pong, Astro Invaders, and Cyber Police ESwat.  Pong works but I think the screen image is a little small.  Astro Invaders just makes some obnoxious noise when I turn it on.  ESwat works but the image is fuzzy.  Any of these games significant/worth restoring?  I am thinking I may sell two and convert one to a MAME cabinet.  Should I bother fixing them, or just part them out?  -Greg