2 0 0You don't need to finish the game. it suffices that you open pause menu > option > crredits.At my first launch, I go in the pause menu, I select options > creedits. I wait few minute (2-3min) and the creedits was ended. so I get my first achivement
0 1 0watch the full credits roll to the end.you can watch from the menu or at the end of the game.Here is 100% gameplay guide for everything in Hue: