Like the first game acquiring certain powers or items allows one to gain access to areas of the world previously
inaccessible, but your reward for backtracking through the environments
is a little corridor or room containing one of the many different
collectibles, an effort that sometimes doesn't really feel worth it.
You
're also able to choose which chapters and character you want to go back to explore, meaning you can clean up any missing
collectibles (especially since areas
are completely
inaccessible late in the game) and learn the final missing pieces of your narrative arc.