Hmm, where to start...1) Stage is way too tall. Try readjusting boundhigh to something more reasonable like -200 for hi-jump stages. After that, you can fix the verticalfollow and floortension values so that characters don't go offscreen before reaching the top.2) The color loss in the background sky graphic is just horrendous. Never, ever use a jpeg image in mugen. The compression artifact alone looks terrible. Find a different image.3) I'm aware of the trick used to make the moon rotate, but the problem is that the characters do slide a little. I'm used to seeing that trick used for non-floor objects to simulate animation changes depending on which part of the stage is in view. Not quite sure what to offer here.
