The storyline focuses on the unnamed summoner and players have to complete every stage to access a new area. Players are allowed to bring up to 5 units in each stage with a "friend" unit in quest mode. Players make friends through friend request. Attacking units in a battle rewards the player with Brave Burst Crystals, and Heart Crystals. After an enemy is defeated, the player proceeds the next stage until the boss, which is required to go complete a level. After completing, players are rewarded with Zel, Karma and items, as well as acquiring units from each mission. When players complete the entire area, they'll be rewarded with one gem. However, if players fail a quest, they use one gem to continue. Units have the ability to execute special attacks, known as Brave Bursts. When activated the unit uses a powerful attack. Brave Bursts can also provide a boost in health points or increase the overall stats to gain an advantage against enemies. Super Brave Bursts can also be executed but only if a unit has a 6 Star Rank and maxed out their Brave Burst gauge. Another version, called Ultimate Brave Bursts can be used by 7-Star and Omni Evolution Units after filling the Overdrive gauge. The Omni Evolution units are able to customize their abilities, as well as additions to the effects given from their Brave Burst, Super Brave Burst, and Ultimate Brave Bursts through Enhancements from fusing other units to the Omni Evolution Units. Omni Evolution Units can also do Resonances which requires two of the same element of Omni Evolution units to spark with each other.