If I'm dangling her Bug-Onna-Leash and my adolescent cat comes running, and I lift up the bug, she'll sometimes do a loopdeloop leap without any track at all, either swatting the bug or grabbing him in her teeth and running off with him. This would be a cakewalk for her.

There are cats who can't jump or run fast or climb, we love them anyway. But to test your theory you need to get the cat to WANT to do it. "What's in it for me?" is their guiding principle.

So it's all going to depend on motivation; the mouse needs to be just bite sized, catnippy, and have a little bell or rattle sewn inside it. You should pull it in an enticingly twitchy way. Treats may also be needed.