The Serum Free Zombie Game
The Serum Zombie Game - Play The Serum For Free - Free Zombie Games - Zombie Games!
Added: Nov 2, 2011
Q - To choose weapon.
R - to reload.
W,A,S,D/Arrow keys - To move/jump.
Mouse key - To aim and shoot.
Space bar - To open doors/climb out.
The Serum has been an outstanding game and it sure is a fun game. Help Zack to find what"s going on in the biomedicine lab where he works. Move with the arrow keys. Press Q to open your inventory. Press the space bar to open the doors. Use the mouse to choose objects from the inventory. Make click to attack. Press