  We present a more detailed numerical investigation of the head-on collision
of a two-kink/two-antikink system. We identified the escape of oscillon-like
configurations as a pair of kinks of the standard $\phi^4$ model moving apart
from each other. New pieces of evidence support that the lump-like defects can
emerge from the two-kinks interaction to form metastable configurations.
Moreover, these configurations signalize the windows of escape that have a
fractal structure similar to the $n$-bounce sequence when the kinks of $\phi^4$
interact. As the last piece of the numerical experiment, we show that by
perturbing conveniently a lump-like defect it is possible to recover another
lump-like configuration as a metastable configuration.
