While the majority of the gameplay for X and X-2 remains unchanged, the games have undergone an extensive graphical update and a large amount of the music for X has been rearranged. All regional releases contain content from the International versions: X has the expert Sphere Grid and several optional bosses, while X-2 comes with extra dresspheres and new minigames. The Creature Creator system was added, whereby players can capture enemy monsters and certain non-player characters (NPCs) to train them and to have them fight alongside the party in battle, similar to the Pokémon series: these captured allies can also be fought and strengthened in a coliseum. Lastly, X-2 includes the “Last Mission” extra dungeon that plays in the style of a roguelike 3D game, having a grid-based layout across which the characters move and take on enemies. Layouts are generated randomly and each opponent is allowed as many turns as the player has taken. As in the main game, the player characters can equip jobs in the form of dresspheres. Dialogue between the protagonists changes depending on which ending the player achieved in X-2. The Eternal Calm movie that bridges the gap between X and X-2 is included in the collection as well. The collection allows for cross-platform saving between the PlayStation 3 (PS3) and PlayStation Vita versions and both games have full trophy support.