Alright, this one might be a little hard, but it sounds like a cool puzzle in my mind. You know the game Die Hard? The arcade game, of course, which was a beat-em up. There's a little section near the end of the game where you must climb a long ladder to a certain floor of an office building. The problem is, there's falling furniture/debris that I guess is supposed to potentially harm/kill you. There is another ladder on the opposite side of the screen. You're apparently supposed to press a button to jump to the other ladder before you're hit by debris. See, that's the only control for a section like that. Just two directional buttons. You automatically climb the ladder, and you don't stop unless you're hit. Now is it possible you can make a minigame like that?