Simon's Simulations

In The Minish Cap, there is a store in the main square of Hyrule Town with a purple ghost as a sign. This is the place of Simon's Simulations, also known as The Mysterious-Dungeon Simulation Game, which gets its name from the Simon Figurine. In this mini-game, Link falls asleep, and awakens in a room where many different monsters spawn. This will happen repeatedly. When Link defeats all of them, a chest will appear in the middle of the room containing a prize. If Link dies in the Simulation, the Game Over Screen will appear. The cost for playing the game is 10 Rupees.

Trivia

 * In the Dream Shrine from Link's Awakening, Link also falls asleep in a small room on a bed and awakens in a room filled with monsters.
 * The Take 'Em All On Game, also located in Hyrule Town in Spirit Tracks, resembles the Mysterious-Dungeon Simulation Game.