I feel like this should be a thing.

100% agree

Then it should divided in 2 categories, main bosses, and sub, such as teh boss in the Ruins and Temple

Why divide though, all bosses should just mean that you have to kill the boss in each stage of your playthrough regardless of which you pick

I shall try to speedrun it,after I at least finish one run haha

I'm speedrunning the game with some people and we decided in our own rules to split all bosses in 2 categories : using death acolyte and not using it. What do you think ?