I remember play this game and it was a stealth game, character and enemies are purple, and saving the princess. Also the enemies worn a cult hoodie and never seeing the face. The intro had a dragon sitting on the castle with the princess aside. And finally you have to hide and grab the enemies and their were touches and you use can them against the enemies. That all I can remember and I believe this game on the website.
Sorry for the poor grammar.
More Info: You can use their costume to disguise as them.Their was some platform.
Edit 1: It used to be on the website probably around 2011 and now it gone.
