Moon Crystal, by a fairly low profile developer called Hector and published only in Japan for the Famicom, feels like it was inspired by Prince of Persia, but with tighter controls and put into the framework of a traditional console action platformer. The green haired hero, Ricky, isn't quite as detailed as the Prince, but his animations are also far smoother than practically any game on the system. Most games used a simple frame for jumping and ducking - Moon Crystal uses several. He skids slightly when he changes direction. He can also grab onto any platform - necessary for certain sections, naturally, but also a good tool to save yourself from misguided jumps - and pull himself up. It even generously gives you the ability to double jump upon obtaining a certain power-up, quite a rare function in an 8-bit game.