In several places around the map, I have seen these shiny circles in hard-to reach places.
They look like the thing on the right side of this image.
I have seen indications on the minimap of where more of these are likely to be, but even the ones I already know about are so hard to reach, I wonder if it worth the effort.
Will anything good happen if I collect many of these? More powers, more map areas, unlock more of the story?
Best Answer
Collecting trinkets unlocks songs from the jukebox.
Collecting all trinkets unlocks the trophy room, where you can view the achievements you unlocked:
Additionally, access to a Super Graviton is unlocked. It is, however, harder than the one found through a normal playthrough. Watch a video of the Super Graviton in action.