However, the entirety of season 6 and now his death in South Park: Post COVID put this up for debate.
In season 13, episode 14, Kenny's immortality was explained to be the potential result of his parents' involvement with the Cult of Cthulhu due to a curse that causes his mother to give birth to Kenny the night after he dies. It's assumed that Kenny's immortality has no limits. For instance, in season 5, episode 13 'Kenny Dies,' Kenny's death is made to be permanent until his return in the season 6 finale 'Red Sleigh Down.' Subsequent episodes have continued to kill and revive Kenny, albeit more sporadically. However, despite the gag's prevalence, it hasn't always been a permanent feature. Kenny's cyclical death and rebirth has been one of South Park's signature throughlines.
