  We study the scattering of the $\varphi^8$ kinks with power-law asymptotics.
We found two critical values of the initial velocity, $v_{cr}^{(1)}$ and
$v_{cr}^{(2)}$, which separate different regimes of the kink-antikink
collision. At the initial velocities $v_{in}< v_{cr}^{(1)}$ kinks can not
collide due to repulsive force between them. At $v_{in}>v_{cr}^{(2)}$ the kinks
escape to spatial infinities after one collision. In the range $v_{cr}^{(1)}\le
v_{in}\le v_{cr}^{(2)}$ we observed kinks capture and formation of their bound
state. Besides that, at these initial velocities we found resonance phenomena
-- escape windows.
