theres a game i used to have in my old (very old) mac, in the early 90s (but it was probably older), it was a very simple game, so i made a draw of it in case someone recognizes it.

http://picturestack.com/17/941/Ppyjuego9xF.jpg

You controlled a red ball with a face, moved in four directions, evaded the enemies, the spikes and other stuff, it was like a maze and you moved in four directions, only you were red, the rest was black (like in the picture) there were enemies were like those, there were walls were like that, the spikes were like that, so if somone knows it he will recognize it inmediatly.