I like the Enemies documentation, it is nice indeed. The gameplay itself could use some work, though.
I made a real doc for my platformer idea, have a look:

Platformer Doc

EDIT: The time travel part seems to be stolen from Blink's idea but I wanted to implement this in my own sidescroller some months ago.

"Falls das Resultat nicht einfach nur dermassen gut aussieht, sollten Sie nochmal von vorn anfangen..." - Manual

Check out my new game: Pogostuck: Rage With Your Friends