Crush Grip (Japanese: にぎりつぶす Grip Crush) is a variably-damaging Normal-type move, introduced in Generation IV. It is the signature move of Regigigas.
The base power of Crush Grip varies between 1 and 120. The more HP the opponent has, the more damage this move will do.
Its damage is calculated by the following formula:
Base Power = 120 × (Opponent's Current HP / Opponent's Maximum HP)