Does anybody know this game?

This game is pretty old and is for the computer. You play as this little pixelized red and white guy who goes around collecting hearts before proceeding through through a square that says exit on it. Along the way you encounter many obstacles such as water, getting keys, fire, and poisonous skulls and bones. I think this game is something like harold's hearts or hero's hearts but I can't seem to find it in any of my search results.