What are the rules concerning costumes worn to Fright Fest at Six Flags Amusement Parks?

I'm planning multiple trips to Elitch Gardens' Fright Fest and I thought it may be helpful to know the guidelines. I've tried looking them up but have had no luck. I was planning on wearing my actual halloween costume (a bubblehead nurse from Silent Hill{movie version for anyone who is familiar with it}) and only just thought that I may not be allowed in wearing it considering the mask, extremely short length, and bits of blood to be found on the costume. Am I right to be suspecting such?What are the rules concerning costumes worn to Fright Fest at Six Flags Amusement Parks?
No masks no costumes(Boy I'm gonna be busy this month).

It's to protect you...

Let's just say I've nearly had my eye scratched out(Plus the threats etc).

There are people that can't handle Fright-Fest.They also get a little to violent(I've been kicked twice never mind the threats of azz kicking).

Just bring you pretty self on down.

Tony-The Phantom of Six Flags/Follow Spot tech/pyro/stagehand at Dead Man's Party @Great Adventure!