  The first metal enrichment in the universe was made by supernova (SN)
explosions of population (Pop) III stars. The trace remains in abundance
patterns of extremely metal-poor (EMP) stars. We investigate the properties of
nucleosynthesis in Pop III SNe by means of comparing their yields with the
abundance patterns of the EMP stars. We focus on (1) jet-induced SNe with
various energy deposition rates [$\dot{E}_{\rm dep}=(0.3-1500)\times10^{51}{\rm
ergs s^{-1}}$], and (2) SNe of stars with various main-sequence masses ($M_{\rm
ms}=13-50M_\odot$) and explosion energies [$E=(1-40)\times10^{51}$ergs]. The
varieties of Pop III SNe can explain varieties of the EMP stars: (1) higher
[C/Fe] for lower [Fe/H] and (2) trends of abundance ratios [X/Fe] against
[Fe/H].
