I just thought of a good use for Karma, but due to the extensive background I've already written and filed away, I can't use it, so I'll post it here:
Use Karma points like spell points, so you lose Karma whenever you cast a spell, so then you have to go around doing actions that raise Karma to regain Karmaspell points.
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Cross over the cell bars, find a new maze, make the maze from it's path, find the cell bars, cross over the bars, find a maze, make the maze from its path, eat the food, eat the path.
"The Hitchhiker's Guide to the Galaxy has this to say on the subject of flying.
There is an art, it says, or, rather, a knack to flying.
The knack lies in throwing yourself at the ground and missing."