With graphics taken from the original The Legend of Zelda, _GNILLEY_ has been
described as a game about yelling. Where the game differs from is predecessor
is in the method used to navigate the environment and defeat enemies. By
yelling as loud as they can into their system’s microphone, the player can
damage hostile creatures and temporarily cause obstacles to disappear so that
their character may pass through. If the player character takes damage, the
screen will shake and flash, which may hinder navigation.