That was fun. The puzzles were just hard enough, but simple enough to figure out without help. The animations were great and I loved the 3-D effects for the tower collapses.
Unfortunately, you need to make it look like an accident, so that nobody gets suspicious about how he died. Otherwise, the game would be much too easy.
The best thing you could potentially do with this game is make it possible to teleport to a boss (like how you can with other players) when a quest shows up-click the red box, then the word "Teleport" and voíla, you appear within a few feet of the designated boss.
I just wish it was more clear what the premise was by looking at the picture for the game. To me it seemed previously childish and lame; something that would likely bore.