He is capable of opening doors and going up or down ladders. However, unlike Blue, who can spot the player and chase them, Green is incapable of doing so due to his blindness. Instead, Green moves slower than Blue but will abruptly stop in place and start sensing the area with his arms. If the player was to walk into Green, even with the box on, Green will instantly attack them. As such, you are able to safely walk past Green in most situations, as he cannot see you.