Subject 13 is a good game chock full of puzzles. I was able to use my mouse only for gameplay. One review mentioned that an area was inaccessible with the mouse but sometimes one can hold the right button down and pan the view. There were a few areas during gameplay that froze up but one only needs to access the main menu and then choose to replay/continue ones game.
Incredibly designed game falling flat because of an old school health meter, possibility of dying and specific vases needed to capture certain genie monsters. The game did not save my progress and I will not replay it as I had accomplished a fair amount and will not resolve hard puzzles.