Also, the player can trigger Critical Hits by connecting their next attack just before the target hits the ground after the first. Additional gameplay elements include Support Attack, which allows the player to call in a nearby ally for assistance, and Cross Hit, which freezes the target in place during simultaneous attacks from multiple units. The battle system is called the Cross Active Battle System, wherein pressing the A button in combination with the Circle Pad performs up to five basic attack combos. Unlike Namco × Capcom, units can move freely within their range on the field map, with no penalty for accessing treasure chests or destructible objects prior to attacking. Each friendly unit is made up of two characters (thus referred to as a Pair Unit), though a third character (or 'Solo Unit') can be added for once-per-battle assistance. Stages in Project X Zone take place in grid-based locations from the game's many crossover titles.
