As of right now, it is kind of like the zelda OoA/OoS trading side mission, where you get items and trade them around.  the shop will have something that the main character wants (Im thinking something like a bus pass to leave the block), so he will have to trade his way up to that item. I'm expecting the whole game to take 5 minuets max, but I am going to have to have a lot of dialogue, which is the one thing that I have no practice with . well, not a LOT of dialogue, just 1-2 sentences before you trade, and a different sentence after you trade.  but it will be a lot of variables

I have a rudimentary menu, but will add the 'current item' to it soon.  Might put a time limit in if it is too easy, since you will miss the bus is you don't get there in time