After beginning the game, players are greeted with a split-screen interface that allows cooperative play. While one player controls Quetzalcoatl on the top screen and gathers stars, another places buildings in the bottom screen. However, each player's actions interact with the other player's. The stars gathered in the top screen are what allow the second player to place either a House or a Temple. Houses cause Aztecs to spawn, while Temples are used to sacrifice the Aztecs. The rate at which sacrifices are gathered are what determines how often new stars are spawned. The game ends once the flow is broken and no more stars are spawned, which leaves Quetzalcoatl unable to fly.