An anonymous reader writes "Kororaa is based on Fedora 14. Users have a choice between a KDE 4.6.3 or GNOME 2.32 Live DVD in 32-bit and 64-bit versions."
The original Kororaa
, back in 2006 and earlier, was based on Gentoo. Development stopped for several years, but has resumed -- but with Fedora, not Gentoo, as the base distribution.