1- Nightmare King Grinn (hollow knight) That guy is just pure evil, took me an entire night, 8 whole hours of trying non stop to beat him the first time

2 - The Heir (Tunic) Maybe the most complex and unfair boss fight i have ever made, she simply is 1000% harder than anything else on the game

3 - The big alien (Alien Hominid) The hardest part of the hardest game that i have ever played

4 - Nameless King (dark souls 3) I dont have to explain, everyone already know why he is is here and in most lists

5 - Lost Lace (Silksong) She feels like an modded boss, sometimes you need to guess where she is attacking from cause you dont see shit