Keep in mind that mice are excellent climbers. They don't need rope to do so. Remember the four aspects of Mouse Nature (climbing, escaping, foraging, and hiding). These are things that mice can do well naturally. Mice can also<em>tap</em>their Nature to gain dice on a roll using a Persona Point. If the mouse is making a Test that involves their Nature (climbing in this case), their Nature isn't taxed, either.<br/><br/>Tapping Nature is going to be more beneficial than trying to climb the cascade of ice like little humans.