Brownknee - Today at 8:15am:
Hi, I really like playing the Krogmo Coliseum games but the one deterrent is not being able to play with friends if they aren't in my guild. I, and I'm sure many others as well, would love to see an option implemented that allows you to join up with friends that are on your buddy list.

I really hope you take this into consideration!
I look forward to hearing from you.

Cronus - Today at 8:32am:
Greetings!

I know a few knights have expressed a similar interest in playing with their friends. One of the reasons that it's not currently available is it can lead to a number of exploits. However, there is currently a suggestion on our Suggestions Forum to allow playing with your friends. Please feel free to post your ideas there so the the developers see it. They often don't post in the threads, but they do read them and take them into consideration.

You can find that thread here:
http://forums.spiralknights.com/en/node/25300