Taking my engine out of the Porsche, so far so good! but have couple of Q's

[dti]

please HELP!! I was going to through the book and everything was fine and dandy.
I got to the part where I unbolt the tranny from the engine ( 7 screws)

the Bentley Manual told me to unbolt them in an order from the top left bolt all the way around unbolting clockwise until I got to the top right bolt.
I unbolted the first three until I got to the 4th bolt. I spent some time trying to find it and I saw one but didnt think it was that one, BUT that's the only bolt there and this bolt is not like the others. Can anyone tell me what tool that is?????? to take off this bolt. All the others are the same except that one. Damn those Germans!!!
please help I would've taken picks but my camera was dead. I thought it was an ellen tool, But it's not it has more edges, even more than a star. Please help