With the PlayStation era ( Final Fantasy VII and VIII ), the complexity of the worlds increased. Final Fantasy VII introduced the "Tutorial" accessed via the main menu, which housed basic mechanics. However, Final Fantasy VIII introduced the "Tutorial" section within the menu that housed the "Information" submenu. This was a proto-codex, allowing players to read text files about the history of SeeD, the use of Guardian Forces, and the political state of the world. This marked the first major shift toward an internalized encyclopedia.