A gameplay mechanic original to Minish Cap is the ability for Link to transform into "Minish size" by using one of the many "Minish portals" scattered across Hyrule. While in Minish size, Link is the size of the tiny Minish race. This changes perspective on the way the player can interact with the world, and requires them to shift from Minish size to human size in order to navigate the environment, avoid obstacles, and solve puzzles. For example, to "Minish Link" squares of tall grass are giant walls, and shallow puddles are giant lakes, whereas small structures are entire temples and cracks in the ground that "Human Link" can only walk over are holes that "Minish Link" can drop down. Enemies that would otherwise be easy to defeat also become dangerous "giant" counterparts, such as a regular ChuChu, which is the boss of the first dungeon and is fought while Link is in Minish size. The game's overworld is a map of the kingdom of Hyrule, and at its center is "Hyrule Town". The town acts as the player's main "safe space" from the monster-infested overworld, allowing them to collect rupees, gather equipment, play games at entertainment establishments to gain prizes, begin and progress side-quests, and interact with the citizens. Throughout the game's various story and side quests, Hyrule Town is also utilized as an on-and-off "dungeon" of sorts that Link must navigate interchangeably in his human and Minish size.