Level 4 stuck
 

I am on level 4 and iam stuck in the big castle.. Wha i am doing? There is a big castle and evry time the door opens a lot of zombies come out, i kill all of them but nothing happrns, help!!

Stand close to the door, and run through the opening when they let the zombies out.

As Terje said. Plus, I suggest using adrenaline - easier to get through and you will need it on the other side anyway.

The hero says "I must enter by force" :) so....