I had been working on
a showmehowitsdonerun of this game starting with PharaohMan's stage, but I just realized that I may need to redo some of it because I didn't discover until very late in the level that I could stop a slide early by pressing Up. (I always thought you had to jump to break out of a slide.) So I could probably speed up a few of the mummies that way.
Regardless, this might be a good time to start planning for the entire game. I know there are a lot of secret passages in this game, but I have trouble finding them; I'll often see the tail end of one of those alternate paths after it's too late to take it, or I'll just find a dead end with an extra life. And all the guides I've found mostly just discuss worthless boss strategies. So if anyone has any good ideas, feel free to post them.