What do you mean the records of a lost civilization are known as MUkashic cubes in the original japanese
As an aside note, for a turn-based RPG, it wasn't too bad a game, really. But:
A. Having Franky out half the game and Brook 3/4 of it was really a bummer.
B. I feel that instead of simply reliving the four arcs (Alabastra, W7/EL, Marineford and Dressrosa), it should have been a big jumble of things that they have to fix their memories to make things right.
I feel that would have allowed more enemy and bosses then. Alas.