That's right, you can't die. You can't fall. You don't have to worry about those kind of things. Also, there is a path carved in the walls and on the floor showing you where to go or climb, so you don't have to think about that either. You don't even have to think about which buttons to press, or when, because there are flashing things in colors corresponding to action keys that signal you when to press them... So, what are you actually doing in this game? I don't know, but whatever it is, it's got absolutely nothing to do with using your brain. Gameplay basically consists of: "See yellow color - press this button. See blue color - press that button." And that's the entire game. I've seen some animals solving much more complicated problems than that. This "game" is an outrageous insult to anyone (or anything) with an IQ above 10.
First, and maybe the best installment in the excellent trilogy. I like to view them as a whole. Each part has its own "uniqueness", but they are all part of a amazing puzzle. If you're into this kind of games, don't miss it, it's one of the best in the genre. Too bad everything went terribly downhill for the prince after the trilogy...