I don't know... The overall gameplay of Integral Factor is tight and easy to play, with better graphic and animation and it had better story and narrative design. Hollow Fragment/Infinite Moment has outdated graphic, clunky and slower animation, more in-depth gameplay but lack of tutorials. Excluding Hollow Area story which is actually short, but good, the original Infinite Moment story is still a dominant story mode of Hollow Fragment which have poor narrative design with badly executed. The plot is so paper-thin, and it wasn't tell and expanded in a more dynamic way. There is no tension, lack of individual focus and character moments (not counting side-story, it's mostly in slice-of-life situation and some personal and emotional problem should be in the MAIN story). The main story didn't make me emotionally invested. I hardly know a thing about Strea until near the end of the story, while most of the time, she acts so annoying in side stories and whenever we received some foreshadowing about her, it took approximately 5 floors in the span of 76 to 100 floor to know. Integral Factor so far have plot with tension, characters death, and original character-focused stories in MAIN story that emotionally invested.
