[quote name='help1']Can this game be beaten in a rental week?[/QUOTE]
In a word, yes it can. If you have 12 gaming hours a day you can knock this out in 4 days. You need to give an additional 2 days for all the "Subject 16" and "feathers" collect-and-puzzle-a-thons that can take some time.
If you map out your approach to those from the beginning, however, you can easily demolish this thing in less than a week. I was able to 1k it in a 2 week period, so rental is a solid choice.
Just remember to concentrate on banking\upgrading early on, and you will plow through it. Also, so many of the missions are unnecessary, you can easily skip them and do them after you complete the game with ease.
I don't own the game, but might pick it up now for the dlc (Review anyone?) so thanks op.