Performing attacks and dealing damage to the enemy fills the Renbu gauge, eventually earning a new rank/level, while taking damage and not attacking for a time drops the gauge if you take a lot of damage or go for a long time without inflicting damage then the gauge may even drop back down to the previous level. The Renbu system replaces this system with a gauge that gradually fills as you perform attacks. In previous installments in the series, combos were affected by the quality of weapon the character was wielding, with more powerful weapons allowing characters longer, more elaborate and often more powerful consecutive attacks. One of the game's key additions is the Renbu system, a new way for characters to build up their attack combos. This installment varies greatly from past games in the series.