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Massive stars end their life when the iron core exceeds the Chandrasekhar mass limit and collapses. In the majority of massive stars, a neutron star is born and the outer envelope gets ejected in a core-collapse supernova. The neutron star often plays no role in the subsequent cosmic firework; but when it does, it can create an even more spectacular explosion. In this talk, I will discuss two extreme hydrogen-poor, stripped-envelope supernovae that have likely been powered by a central neutron star. First, I will discuss SN 2020wnt, a very luminous supernova similar to the magnetar-powered superluminous supernovae. But unlike a typical superluminous supernova, SN 2020wnt only shows weak signatures of the neutron star at late times. It is the latest and most luminous member of a growing class of over luminous but spectroscopically normal stripped-envelope supernovae. Second, I will discuss SN 2014C, a hydrogen-poor supernova that starts interacting strongly with its progenitor’s lost hydrogen-rich envelope. Remarkably, very late time spectra reveal that a different powering mechanism, perhaps from the central neutron star, may be at play. I will discuss how upcoming instruments and surveys will help us quantify the roles neutron stars play in core-collapse supernovae.