I once tried Rocker, but only on the battlefield; I haven't tried the ballerina, the motorcycle, or shooting with a slingshot. It's cool.
Regarding clumsy hands that grow from the same place as the legs – sometimes even cheats won't help. I once played a map, I think it was called "World Museum," and I placed unreal armies on the passage. I arrived on the territory of the enemy, who could be defeated with a single shalaboon, but I couldn't get to him. I looked in the editor – there was a free passage 2 cells wide, and there didn't seem to be any events or conditions, but in the game, it was like hitting a glass wall...