In this instructable I will teach you how to be a headcrab zombie from the game "half life 2"
Step 1: Things required
There's some stuff needed to be a headcrab zombie, the things required are:
a headcrab hat (or any headcrab that can fit on your head)
a blood-stained white long sleve shirt
a blood-stained pair of blue jeans
you can get fake blood at any halloween store or you can make it yourself (there are instructables on how to make fake blood).