I think automatic or forced movement would be at least a nice option to have for a more difficult experience. If you don't know them already you should check out the abstract platform levels of Super Mario Sunshine, they are straight forward too and should give you some ideas, I loved them back then.

EDIT: Not the best example but look here: http://www.youtube.com/watch?v=dulHYb83PXQ

Last edited by Superku; 12/28/13 10:57.
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