Wall Rush is a special damage factor in Dissidia.
Wall Rush occurs whenever a character is slammed into a solid barricade such as a ceiling, wall or ground. The target will take half the damage the original attack dealt to them, allowing for strategic attacks. Every character has at least one or more attacks with the Wall Rush property. The damage can apply to both Brave and HP when used. Although Wall Rush can inflict Break, it will not defeat the target if an HP attack was used. If the attack's Wall Rush exceeds the target's current HP, it will simply reduce it to 1 HP.