I just didn't like this game as much as most reviewers do. Even though the game engine (if that's the right usage of words) has advanced from the first 2 games, and the graphic detail is perfect, there just seems to be something missing. I can remember playing this game all of the time as a kid (along with Mega Man 2,) but I find myself playing MM2 again much more than 3. Don't get me wrong though, it isn't a bad game. There's some great new additions to the series, like Mega Man's ability to slide, being able to carry more than 4 energy tanks, and of course, the robotic dog Rush. As far as challenge in this game goes, it would fall somewhere between Mega Man and Mega Man 2 (both of which I don't find too difficult, except for a couple stages.) The sound effects have changed quite a bit as well, and gives the game a little more shine. The music, on the other hand, was terrible (excluding Shadow Man's stage.) Everyone says it's great, but compared to Mega Man 2's, I don't see how. Anyway, if you're a collector, this is a good game to pick up, although I would recommend 1, 2, and 4 before you get this one.