Dead Wing

The Dead Wing (デッドウィング, Deddo Uingu), also simply known as a boomerang, (ブーメラン, Būmeran) is one of Dead Master's weapons in Black★★Rock Shooter DAWN FALL.

Description
Dead Master has two Dead Wings, which are folded in a "W" shape and stored on each side of her vehicle when not in use. They can be launched directly from the vehicle or thrown by Dead Master herself, and attack by spinning rapidly to slice enemies apart.

In addition to their use as a weapon, the Dead Wings' jet propulsion is powerful enough that they can also be used to provide flight for their user.