See also: Reverse (phenomenon).
They all have a striking mutual feature in their artwork, they all hold the black rings, this is to signify their corruption by Link Joker. Also, the letter Я has a distinct red outline that all the other characters do not have. So far, they are the only non-Link Joker units to be able to lock. Contrasting from Link Joker's ability to lock their opponent's rear-guards, "Reverse" units locks their own rear-guards to gain huge advantages.