Crisis Core is both an action and turn-based RPG, with a stream of fast turns creating the illusion of real-time 3D combat. Like the Square and Disney hybrid series Kingdom Hearts, the player chooses actions from a menu, featuring attack, any magic, special attack, and item. The game's key feature is the Digital Mind Wave - a slot machine-like screen in the upper left-hand corner. Images and numbers continuously scroll in each of the three slots consuming Soldier Points (SP). Combinations of sevens lead to special Status Effects, while having identical characters in the left and right slot opens up the modulating screen. Certain combinations of characters and numbers in modulating phase will allow the player to Level up Zack, power up Materia, or perform special moves and summons monster.