Yeah, the floating island. You have a Knuckles, too? Anyway, it's just called a chaos emerald. Least that's what he says. Buttnik had him fighting us while he had it stolen by his stooges once. That didn't work though, so I guess he tracked down another one.

[And group meetups!]

Pretty much. They do a lot. But we mostly use 'em for music since...well it's illegal since it speaks to people. And it's fun, which is also illegal.