With Keycard 1, proceed through the northern door into the research lab complex. This area is characterized by multiple interconnected rooms, each with its own set of guards and security measures. You'll encounter laser tripwires and pressure plates, so move cautiously. Your objective is to find a specific lab where Dr. Marv is being held. This often involves finding a computer terminal to download data or activate a switch. Look for rooms with scientific equipment and avoid triggering any alarms. You might need to use the Cardboard Box to sneak past guards in open areas. The labs are a maze, so consult your map frequently and remember the locations of locked doors that require higher-level keycards.
