USJ - Need translation

Hi guys,

I'm interested in this Biohazard maze in Universal Studios:

http://www.usj.co.jp/e/universal-cool-japan2015/biohazard/

On that page is a link to a ticket page, but it's only in Japanese:

http://www.usj.co.jp/ticket/expresspass/show/bio-ucj2015.html

I was wondering if someone can help me out.

1) Is this attraction an extra fee to the ticket admission?

2) If so, how much? There seems to be 2 price points. What's the difference between the two?

Thank you.

Hello, yes it's in advance or on the door.

【ADVANCE】for adults/children common ￥2,315（tax included ￥2,500）
【DOOR】for adults/children common ￥2,778（tax included ￥3,000）