Here's my (albiet badly thought through) idea:
A quiz show, built within an RPG engine. For my example, I'll use Who Wants to be a Millionarre.
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Your character starts at the bottom of the screen. Chris Tarrant (or Regis Philburn if you're an American) is the middle, and you walk up to him. A question appears and four possible answers appear and you can walk around and make contact with one of the answers.
The way that the last bit happened was that there are hundreds of rooms which look identicle, but which have different questions written on the floor as objects which appear on top of the rest of the scenery and which the player creates an event by coming into contact with. When you walk up to Tarrant, you are teleported to a random one of these rooms.
If you come into contact with the correct answer, you rise by one level and are awarded an amount of Gold based on which level you are (ie. the amount of Gold which you would get by answering that question correctly in the show itself). You are then teleported to the next random room, where you must answer another question.
If you make contact with a wrong answer, you lose a set amount of gold depending on which level you are on ie. level one, you'd lose 100, level 2, you'd lose 200, but if you're after level 5 or 10 (the points where, in the real show, your money is safe) then you'd only lose enough to take you down to the safe point). The game is then over, and a Game Over screen tells you how much you left with.
If you reach level 15, then you've won the game, and a splash screen tells you of this and that you've won a Million.
There would also be a "take the money and run" option, which do the same as getting a wrong answer, but without taking away any money.
As for the lifelines... Since the game's designer know the answer when he's designing each room, he can choose two that will disappear if the player chooses the option. Of course, which two disappear wouldn't be random, but predetermined by the room itself. Similarly, a made up answer from the audience and your friend could be done for the other two lifelines (with the designer throwing in a few wrong answers to make it realistic).
The three lifelines would be items that are in your inventory at the start to make sure that you can only use them once each.
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The main problem with this whole idea is that there would have to be a HUGE number of rooms for the question to seem random. I'm not sure if ColdStone can cope with all of these rooms, whether the graphics for the questions would take up too much space, or even whether it's possible to appear in a random room (I've been looking, but I can't find the option).
The other, in some ways bigger, problem is my total lack of ability. I'm still having trouble going through the tutorial to make a NPC appear in PoG (I'm sure I'm following all of the steps, but when I load PoG, he isn't there!), and my artwork leaves so much to be desired that if I did make the game, I'd probably end up using one of the Monks who looks slightly like Chris Tarrant...
Spiffo.
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