The original game had a simple structure, but the Remake adds environmental hazards and faster zombie movement. Here is the breakdown.
If a scientist dies (whether by a zombie, a stray bullet from your gun, or an exploding barrel), they vanish permanently for that playthrough. You cannot revive them. You must restart the chapter or the entire run. house of the dead remake save all scientists
If you reach Chapter 4 with all scientists saved, you gain entry to a hidden bonus room after the Hanged Man rematch. Unlock the Armory: Entering this secret room or earning the The original game had a simple structure, but
Depending on your route, look out for monkeys ( Saruzous ) and standard zombies cornering scientists near drop points. Don't accidentally hit the human when aiming for the monkeys' fast hitboxes. Chapter 2: Revenge You cannot revive them