I helped build a project for William's grade 11 psych class. His experiment is about the affect of winning or losing on the enjoyment of a game. The "game" is really a dvd menu built to look like a game. However, each choice is not really a choice but two versions of the same result. Therefore, William would know before the game starts if the player will get them all right, all wrong, or a 50/50 split (there were only three versions). When you pick a loser, you face the roaring dragon but if you pick a winner, then "cha-ching", you get treasure.. Glitches in Adobe After Effects that I continuously encountered while creating the sequences led me to re-installing my whole O/S the other day but most of it is in place again.