  We report the appearance and the metamorphoses of spiral wave chimera states
in coupled phase oscillators with inertia. First, when the coupling strength is
small enough, the system behavior resembles classical two-dimensional (2D)
Kuramoto-Shima spiral chimeras with bell-shape frequency characteristic of the
incoherent cores. As the coupling increases, the cores acquire concentric
regions of constant time-averaged frequencies, the chimera becomes
quasiperiodic. Eventually, with a subsequent increase in the coupling strength,
only one such region is left, i.e., the whole core becomes frequency-coherent.
An essential modification of the system behavior occurs, when the parameter
point enters the so-called solitary} region. Then, isolated oscillators are
normally present on the spiral core background of the chimera states. These
solitary oscillators do not participate in the common spiraling around the
cores; instead, they start to oscillate with different time-averaged
frequencies (Poincar\'e winding numbers). The number and the disposition of
solitary oscillators can be any, given by the initial conditions. At a further
increase in the coupling, the spiraling disappears, and the system behavior
passes to a sort of spatiotemporal chaos.
