These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
YMMV: Eternal Poison
Breather Boss: Manti Gigas is one of the three bosses that can come after Morpheus. He's also easily the easiest boss in the game, with an easy to break Demon Aura, low stats, and weak backup.