I saw a handcyclist the other day and and idea came across my mind.
What if you setup your bicycle cranks like a handcyclist. You know, facing the same direction, instead of opposing directions? It would be like doing leg presses each pedal stroke. But, you would have to pedal like powercranks because you would have to pull up on each up stroke. Someone should try it on a computrainer and tell me what it’s like!! lol 
that would look so goofy!