What is truly the most difficult rom hacks of all

What rom hack has the absolute worst difficulty of all time. Like brutally, sadistically, unfair difficulty that makes you want to commit die

radical red, pokemon unbound hardest mode, any hack that has "kaizo" in its name

White kaizo 2 as the worst unfair kaizo hack. Radical Red is just competitive formate. Other ones dificult but fair and funny hacks are Clover, Nameless fire red project, Crystal Maeson, Polished Crystal, Last fire red, Cloud withe serie and may be Snakewood... Ooh! Vega.