This category marks if a game has an in game unlockable and browsable database of monsters and various other features. In particular, a full score requires more than just a list of all abilities, attacks and items. Monster listings can also be useful for stats, weaknesses, etc in order to let players craft strategy, but many fans simply enjoy being able to browse the sprites and see the names of monsters after defeating a certain amount of them. Since these are often arcade style games, much of the vibe and feel of the game comes from things like monster names and these menus.