you get a trophy
when you collect all the rubberbands in bully i get the famous RUBBERBAND BALL
nothing will
You get like a special chair
Creatures Concept Art Collect all treasures Lara Croft Concept Art Collect all relics
Nothing
it gives you 20 percent discount
you can get a trophy
You realise how much time you have wasted looking for them all.
Nothing, An Achievement is all you recieve.
You can enable flying
you unlock a new bonus movie
nothing you just get to see them all in your extras option