I feel like William Aftom from FNaF would be a perfect example of a evil version of Perseverance. He IS called "Purple Guy" after all, and what became his catchpharase "I always come back" perfectly embodies the concept of Perseverance. He never gives up, and always tries to be a step ahead and get out of any given situation, and if you try to kill him, he always comes back.
Kris ripping their out to eat a pie is funny but Kris ripping his soul out to jump out his window, slash his mother's car tires for no reason, crawl back in, wash his hands and putting his soul back in is god tier.
this ending is both terrifying and cute. mostly cute (I find some of the more horrifying things to people more cute but THAT CLAYMATION META FLOWEY IS HORRFYING)