Rogue Galaxy review

To unlock those special techniques (which range from simple power-ups to massive group attacks), you'll need to tackle each character's "Revelation Flow," essentially a flowchart with empty slots for items. Fill all the slots for a particular ability, and you'll get a new move to bust out in battle, as well as clearing a path to the next set of skills. At first, the items used for Revelations seem like random crap, being useless baubles, hunks of ore and weird food items. But eventually, you'll find other uses for that stuff, and as those items get rarer and rarer, you'll start to get really choosy about how you dole them out.