Simon's Simulations
In the game The Minish Cap there is a store in the main square of Hyrule Town with a purple ghost as a sign the is the place of Simon's Simulation (This name is taken from what Simon calls it)A.K.A. The Mysterious-Dungeon Simulation Game (This name coming from the Simon Figurine). In this mini-game you fall asleep and be in a room where random mosters will spawn through the room, this will happen a couple of time. Afterwards a chest will appear in the middle of the room containing a prize. The cost is 10 Rupees to start. If you die in the Simulation you will goto the Game Over Screen.