OK, more hints, starting to go into the TOP 5.
#9: Guessed by Darashiva: Demon's Souls
#8: Guessed by Darashiva: Okami
#7
a) Visions of the future.
b) Use these visions to avoid or counter enemy attacks.
c) This sword has different... options(?) to activate.
#6
a) Life as an idol in japanese culture and secretly fighting strange dangers.
b) Japanese pop-culture creates enthusiasm, from which otherworldy beings feed on.
c) Crossovers between two IPs from two different companies.
#5
a) Remake of the first game in the series with the engine of the fourth.