Continental Crush inflicts damage. Its power and whether it is a special or physical move depends on the move it is based on.
If Breakneck Blitz is used during a sandstorm with Weather Ball as its base move, it will turn into Continental Crush. This does not occur if Weather Ball is turned into a Z-Move via another move like Sleep Talk.
The user summons a huge rock mountain using its Z-Power and drops it onto the target with full force. The power varies, depending on the original move.
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Any non-Mega Evolved, non-Primal Pokémon can use Continental Crush if it knows a damaging Rock-type move, holds a Rockium Z, and if its Trainer wears a Z-Ring.
Midnight Lycanroc strikes a series of synchronized poses with its Trainer to build Z-Power. It then jumps into the air and summons multiple rocks from the ground, forming a huge boulder. It then hurls the boulder at the opponent. When the boulder hits the opponent, it explodes.
After its Trainer builds Z-Power with a series of poses, Midday Form Lycanroc jumps into the air and summons multiple rocks from the ground, forming a huge boulder. It then hurls the boulder at the opponent. When the boulder hits the opponent, it explodes.
After its Trainer builds Z-Power with a series of poses, Dusk Form Lycanroc jumps into the air and summons multiple rocks from the ground, forming a huge boulder. It then hurls the boulder at the opponent. When the boulder hits the opponent, it explodes.
In PASM03, Olivia's Midnight Form Lycanroc was mentioned to be able to use Continental Crush, but the move was interrupted before it could be executed.