Magical Circle Guruguru

A simple dungeon crawl simulating card-game based on the Japanese comic/animation "Magical Circle Guruguru". The boss card is placed in the center, the rest of the cards placed in an expanding circle, all cards partially covering at least 2 other cards. Each turn, a player may advance in the dungeon by picking up one card that isn't covered by any other card, and follow the instructions on it.