So these emulators are very special to me... the DS is a unique handheld that is perfectly suited for the systems with various controller options. The consoles and computers I had as a kid (young teen) are pretty much the Intellivision followed by ColecoVision and then an 800XL (the only other pre-PC system I had was an Atari ST), so I can tell you that I truly appreciate all the hard work which has gone in to these emulators. It's the attention to detail and usability which is the best feature here...