Yeah, Capcom figured that out ages ago with Monster Hunter.

They tweak some movesets on the skeletons, they improve the ai a bit. They create next textures, and spend their time making endgame bosses a bit more unique.

My favorite example is Kushala Daora. I don’t exactly know how many times his skeleton has been reused, but I know Monster Hunter World had at least three reuses of it.

But they always have unique fights for final bosses, even if the Elder Dragon reused assets.

Programming is all about reuse in general. Reuse is part of good applications.