Board Thread:General Discussion/@comment-4674838-20130404033128/@comment-4674838-20130414061821

I've always considered The Twins to be the hardest boss in the game. It's kind of a close call comparing them to Skeletron Prime, but ultimately, I think The Twins have a slightly harder AI routine and the cursed debuff from Spazmatism (the green flame breath) is extremely painful and hard to deal with.