@ALI, Exactly, a lot of plats can easily be done in 8 hours or less meaning if you actually wanted to you could get like 5 plats in 5 days easily with the likes of LOW, POP, UP, IA3 etc.
Anyway, slowly doing spec ops with my mate inbetween Tekken, i need to beat the yoshimitsu level and unlock the mokujin 1, these are the only 2 places i've found the game challenging so far, i think i got lucky on Nightmare Train and did it within about 10mins.