The wonderful c64s.com site has all sorts of retro-gaming bliss that run through a Java emulator.
Bless the nostalgic nerds that bring forth such wonderful technology.
I had a Vic20 back in the days and then moved on to the Apple 2E.
I remember some kind of video game involving vegetagles and stuff. Made my eyes hurt but it was the first game we got so I played it all the time.
A friend on the block had this system and we all used to line up to play before the NES landed in everyone's home.