Object interaction has been fundamental in many games; Project N is no exception.
We had decided that being able to mess with your environment is an important thing since the beginning of development. Now, after some experimenting with different types of interaction, we have finally settled with an Amnesia-esque system.
For more stuff, visit: Projectnarey.weebly.com
Twitter: @Peterthehe
The amnesia style interaction is probably the best way to go :).