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The Serum,
Rating: 85.5% with 28853 votes ,
Played:58006 times,
Add to 2010/8/23 18:01:50
Description:Help Zack to find what's going on in the biomedicine lab where he works.
Control: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.