▁offers ▁ 4 0 ▁types ▁of ▁mon sters , ▁ 1 6 ▁additional ▁levels , ▁and ▁six ▁additional ▁weapons . ▁It ▁is ▁the ▁second ▁expansion ▁of ▁P ain k iller ▁with ▁the ▁first ▁being ▁ ▁P ain k iller : ▁Battle ▁Out ▁of ▁Hell . ▁ ▁Plot ▁The ▁player ▁takes ▁the ▁role ▁of ▁Bel ial , ▁a ▁half - angel , ▁half - dem on ▁gate keeper ▁and ▁son ▁of ▁ang el ▁S amma el . ▁He ▁was ▁rejected ▁by ▁both ▁hell ▁and ▁heaven , ▁and ▁as ▁a ▁result , ▁S amma el ▁and ▁Cer ber us ▁imprison ed ▁him . ▁When ▁Daniel ▁Gar ner ▁defe ats ▁Luc ifer ▁in ▁P ain k iller , ▁Bel ial ▁esc apes ▁his ▁prison ▁and ▁starts ▁to ▁seek ▁reven ge . ▁ ▁Se qu els ▁Bel ial , ▁the ▁play able ▁protagon ist ▁of ▁Over d ose , ▁re app eared ▁in ▁all ▁later ▁exp ans ions ▁and ▁sequ els . ▁In ▁P ain k iller : ▁Red em ption ▁Bel ial ▁was ▁one ▁of ▁two ▁play able ▁characters . ▁Red em ption ▁was ▁developed ▁by ▁E gg to oth ▁Team ▁and ▁released ▁in ▁ 2 0 1 1 . ▁Bel ial ▁also ▁briefly ▁appeared ▁in ▁P ain k iller : ▁Hell ▁& ▁Dam n ation ▁which ▁serves ▁as ▁a ▁re make ▁and ▁sequ el ▁to ▁original ▁P ain k iller . ▁ ▁Re ception ▁P ain k iller : ▁Over d ose ▁received ▁mixed ▁reviews ▁from ▁critics . ▁Re views ▁of ▁Over d ose ▁were