Raiden Mk. II Beta is the blue counterpart of the protagonist ship Raiden Mk. II as the second playable ship. Like its original counterpart, it debuted in Raiden II. In the original Raiden games, the Raiden mk-IIβ is simply a clone of its red counterpart, and can use the same weapons. In Raiden DX, Raiden MK. IIβ (Player 2) side starts with a stock of Cluster Bombs, as opposed to the Raiden Mk. II starting with the Thermonuclear Bombs. Raiden Mk. IIβ returns with it's red cousin in the revival of the main series, Raiden III, a little more detailed than the classic depictions.