uhm, no you can be killed even if you give your self 'god like' mode, bleedout weapons will cause you to die, ive tested this numorious times and died. even bosses and PvE can kill you if you're hit enough times. i died after 13 times that i was summoned to help people with four kings, i never bonfire'ed. you dont have unlimited health, you just have TONs of it. people should understand their players stats and watch their health go down when they are attacked like i did.