  We investigate the ringdown waveform and reflectivity of a Lifshitz scalar
field around a fixed Schwarzschild black hole. The radial wave equation is
modified due to the Lorentz breaking terms, which leads to a diversity of
ringdown waveforms. Also, it turns out that Lifshitz waves scattered by the
Schwarzschild black hole exhibits superradiance. The Lorentz breaking terms
lead to superluminal propagation and high-frequency modes can enter and leave
the interior of the Killing horizon where negativity of energy is not
prohibited. This allows the Lifshitz waves to carry out additional positive
energy to infinity while leaving negative energy inside the Killing horizon,
similar to the Penrose process in the ergosphere of a Kerr spacetime. Another
interesting phenomenon is emergence of long-lived quasinormal modes, associated
with roton-type dispersion relations. These effects drastically modify the
greybody factor of a microscopic black hole, whose Hawking temperature is
comparable with or higher than the Lifshitz energy scale.
