I just had another idea for a game, but it would be a really huge project and would probably be too complex or difficult to put into practice

What do you think of this game as an idea:
Short description: One game where you have to hop in between games; each game is a unique game and is interfaced with the other games. You can change certain things in one game and they have an effect on the other games. For example one of the five games would be a horror game similar to Silent Hill or Resident Evil, and there could be a lever or something and once you push or pull it, it may lay open some area in another game. The way to interface the game would be for example, in the horror game, you walk into a deserted aracade and play it there