Thanks - you make good points!
For a high score you need to do just one trip, and then head all the way to the end of the dungeon to find the golden biscuit which will double the value of your gold. Gold found further into the dungeon is worth more as well.
Of course we didn't mention any of that which makes it hard to know.
Maybe there shoud just be one trip in, and the level ends after you exit - then you can go to a new level or something, needs some thought. We also want to add some more things to slow you down, maybe enemies - but just to slow you down, not to become a shooter