Lucky Chloe's Kick Up causing a Wall Stagger in Tekken 7.
Wall Crush, later renamed to Wall Stagger is a mechanic introduced in Tekken 7 Patch 5.00 but is no longer treated as a special mechanic in Tekken 8. When a Wall Crush is triggered, the opponent will suffer heavy pushback, but if their back makes contact with the wall, they will collide and be forced to kneel momentarily.
Originally, the property existed since Tekken 7: Fated Retribution but was limited only to blocking a Rage Drive that had the wall resplat property.
Each character has at least one attack that will trigger a Wall Crush, but notably, the property may only apply when the attack either lands or is blocked but never both. Unlike the Rage Drive, blocking one of these Wall Crushes will not cause any damage even if they make contact with the wall. Wall Crushes merely provide a massive frame advantage and force the opponent to crouch, whilst also providing mixup opportunities for the attacker, though the amount of frame advantage differs on the attack.
Wall Crushes do not have a unique icon in the command list.