If you think THAT'S bad, try playing the MSX version. The screen had to completely re-draw with every step you took, all sprites had a black box around them (apparently transparency hadn't been invented yet), and even though it was on a computer, it wouldn't let you save your game to a floppy disk. However, it was so far ahead of its competition at the time that it won over the hearts of gamers nationwide. Just goes to show you how much perspective can change your opinion on a game.