One day my brother was playing ratchet and clank 3: up your arsenal, and he thought it would be funny to press all the buttons on the controller at once. When he pressed all of the buttons, it opened a demo for sly cooper 2: band of theives.
Found this in a few sources online. Apparently, by pressing the four shoulder buttons, you can play the demo.
Source 1
Source 2
So I was right after years of remembering. yay.
Is it also in the HD remake ?
I don't know, I do not believe it has been released yet.
it did
June 27, 2012 (EU)
June 28, 2012 (AU)
June 29, 2012 (UK
I always thought it was neat how well Naughty Dog, Insomniac and Sucker Punch got along.