Below is the list of the games I've completed the single player portion during 2012. Games are listed in the order they were completed. I also added a star rating for my personal review of the game.
Showing 1-10 of 15 items
Normal Difficultly
Total Playtime: ~34 hrs
Input Method: Keyboard/Mouse
Total Playtime: ~18 hrs
Input Method: Keyboard/Mouse
Normal Difficultly
Total Playtime: ~28 hrs
Input Method: Keyboard/Mouse
Riddler Trophies Collected: 400/400
Normal Difficultly
Total Playtime: ~14 hrs
Input Method: Keyboard/Mouse
*Previously completed single player
The Doctor Who Cloned Me DLC 
Normal Difficultly
Total Playtime: ~3 hrs
Input Method: Keyboard/Mouse
"Give me a challenge" (Normal Difficultly)
Total Playtime: ~23 hrs
Input Method: Keyboard/Mouse
Missing Link DLC
Normal Difficultly
Total Playtime: ~6 hrs
Input Method: Keyboard/Mouse
Normal Difficultly
Total Playtime: ~1 hr
Input Method: Keyboard/Mouse
Normal Difficultly
Total Playtime: ~3 hrs
Input Method: Controller
Total Playtime: ~6 hr
Input Method: Keyboard/Mouse
Total Playtime: ~1 hr
Input Method: Controller