About Flat Zone, maybe a little too in beta state to share it, but well...
I've noticed a lighting problem with the stage, it seems like some of the parts (or at least, the outside, the yellow part) was trying to use lighting 2. And the light named 'light02' was really light 1, while 'light01' is light 0. So, random lighting comes for materials trying to use lighting 2. That looks weird sometimes, in my case it was too lightened.
I've just changed the scenedata to use light01 as light 1 and light02 as light 2.
http://www.mediafire.com/?3d4xh7895uw7pshSome details could have been polished for that beta release, like the letters on the game&watch. I guess they would look better if the non-black part was transparent for them. And for the random teleporting to the center, the best thing is rigging each platform to a bone that's actually placed where the platform is, so the teleport is kept on the center of the platform, and not the center of the stage. The shadows could have been the same color as the actual character shadows, but they look grey, at least in my game.
It's like if you needed to rush the release or something :/