For me, any of the eye bosses, simply because they're just too similar to each other. Look at these things, they have no real interesting design, and so little to differentiate them:
How many giant eye creatures do they need? Others I always found a bit lame where the bosses from the first Four Swords, which had no personality at all, and forgettable designs.
How many giant eye creatures do they need? Others I always found a bit lame where the bosses from the first Four Swords, which had no personality at all, and forgettable designs.