The image of the zombie girl on our advertising is no worse than many images you'll see at this time of year in newspapers and magazines, on the Halloween costumes in the supermarket aisles and even on kids' TV programmes.
We have been running our Halloween events for over 15 years, and they are extremely popular, with up to 5,000 people a night going through the six haunted houses and rides.
We are waiting for the Advertising Standards Authority to come back to us with their judgment to see if we have to take the ads off the buses.
More top news
If you're dreading going to work Monday morning, how about this for a career change.
Police have released more images of people wanted in connection with what they describe as 'disorder' at a McDonalds in central London.
Four teenage girls, one of them aged 15, have been arrested following what police are describing as "disorder" at a McDonalds branch.