Melty Blood Actress Again - Shiki Ryougi (Eclipse) boss fight

Achieved by either reaching at least six perfect matches abd achieving a score of 100000, fighting Eclipse Moon Shiki Ryougi - which happens in between the 7th and 8th opponent in Arcade Mode - is an entirely new experience of pain by itself.

Shiki Ryougi - crossover character from light novel series Kara no Kyoukai (localized outside of Japan as The Garden of Sinners), one that first appears in this game - is the only character in Actress Again that has a secret boss form and is not available to battle in regular Arcade mode, unless you managed to achieve these requirements. I was able to easily achieve these requirements, however I wasn't ready for what happened next.

Eclipse Moon's AI is a cut above the rest - debatably even more so than the game's default hard difficulty - in terms of aggressiveness AND combo ability, and takes a while to take down thanks to both the defense boost of the Eclipse style and the rapidly regenerating meter that allows her to access Initiative Heat/Blood Heat easier - Heat regenerates your health here.

I admittedly lost lots of times against Eclipse Ryougi - I had to restart Arcade mode lots of times because of this, as losing against her continues the rest of Arcade mode as if nothing has happened. Archetype=Earth in Current Code effectively replaces her status as a hidden boss, so I might cover that maybe later on.