If my memories correct Star Ocean had "Beam Saber" like weapons in all their games & all of those games are owned by Square-enix (only cause they at 1st were Square/Square-soft) so they don't have to as long as it ant 1) named after anything else that exsists that ant theirs & 2) ant a perfect in-game duplicate of said item, might even get away with it if they use some diff name anyway... but yes after having to fight the B rank Omni I have just looked at SE & gone "but why can't we get one of those?"