The replicators nonetheless escape, and fire a projectile composed of replicator blocks at the ship, infesting it.

Drawing the bowstring back with the winches twisted the already taut springs, storing the energy to fire the projectiles.

When it reaches the base of the tube it hits a fixed firing pin, which detonates the baseline charge and fires the projectile.

Mutants home in on the player at constant speed, firing projectiles.

They could also fire projectiles in a straight line, so that they could destroy the bases of high walls.