The things we do for Love

A princess wants to date a knightess. The knightess agrees. The king does not. The obvious solution: Sneak through the requisite dungeon to get into the castle anyway. Alas, our heroine is a bit overeager, and finds her movement a bit out of control - once started, she wont stop, you can only shift to a different direction. And not just that, her times limited to - and so are her action. Too many inputs, and shes literally out of controls and probably on her way to fall into a pit! Which brings ...