Do you know Mu? Not every MMO player is familiar with the eastern Mu franchise, but it is apparently popular enough to spawn a line of titles (such as Mu Origin). One of these, Mu Legend, is heading into its first global closed beta test today.
Mu Legend is a hack-and-slash sequel to Mu Online and features gameplay similar to that found in online action-RPGs. The beta test is scheduled to run from today through November 8th. As it is a closed beta, you will have to apply for and hope to get a key to participate.
Webzen also used the global CBT as an opportunity to open up the official Mu Legend forums, so if nothing else, you can practice your lurking skills there. Alternatively, there is a nearly eight-minute gameplay trailer waiting after the jump to help provide a deeper understanding what this game is all about (frantic clicking and bright spell effects).