Ghostbusters (Sega Master System - 1989)
Regardless of what AVGN says, I really like this game.
Played this to death on my cousins CPC464. Pretty sure I still have the music burned in my brain. The game was not so bad...like a precursor to the UFO:Enemy Unknown/X-Com game (to me anyway).
@MrRobotoUK I played the C64 game first too. I'm pretty sure I read that it was initially going to be a different game.