So I watched the first 200,000+ of the video Lutus sent me. What a joy to watch. I did pick up a number of tips, not the least of which is barrel control (I don't have it down pat yet, but I'm starting to pick it up! don't know why I had so much trouble with it before).
Back to the conveyor belt screen, what I saw him do on all levels is jump straight up immediately, then proceed to the right. All 3, 4, or 5 fireballs come out on the left side without a wasted moment (timing seems absolutely optimal).
On the elevator screens (3rd and beyond), I noticed that he seems to recognize another opportunity to go up the ladder. I always go after the one that bounces almost flush with the right edge of the elevator "mount", but I saw him go after one that wasn't even close to there. In other words, he has developed the ability to maximize points by not having to wait a while until that ideal spring comes along.
On the rivet screens, I have always waited at the bottom hammer until what seems like the ideal time to start getting the most fireballs. He never does - he just gets it immediately and gets whatever fireballs he can regardless. I did this tonight and perhaps it was just coincidence, but the rivet levels seemed easier to finish off than they normally do.
So I played one game to practice some of these techniques. I lost 3 men to practicing the tips I learned from the video but still got 138,000!!! The barrel stages seemed much easier now that I have the hang of barrel control a little bit.
The one thing that stood out to me with the video on the barrel stages... he really seems to have a strategy to avoiding the wild barrels - I sensed absolutely no panic in him, nor hesitation. This is my real downfall on these levels. I panic a bit, and apparently whatever the natural avoidance tendency is, Nintendo has masterfully programmed the barrel to seek you out! But clearly there is a winning strategy with regard to wild barrels. Not sure if it involves some degree of control or a strategy of avoidance or both. Anyone have a sense of what that strategy is?