Horde mode room viewed from the second floor balcony. $100 is present in the bottom left corner.
Horde mode room viewed from the bottom floor. The player is unable to move, ‘zombies’ spawn and move to the player, T-posing to block the player in.
Layout of the horde mode map. The doorways on the second floor cannot be entered / exited by players. I assume those could be the doors that zombies can go through but players can’t.
Unrelated: