Brave Moonlight - It shouldn't effect your achievs if you were palying on hard and and then selected a chapter and put it on hard again.
TheTolietBrush - Its on Dark Athena. Kind of early in the game.
Bertruger - For the top I stayed to the right as much as possible and the bottom I did it just like Remgeo did.
Retail Games Completed - 39
Arcade Games Completed - 46