For example, could I use some models from the level in my own project that I will be selling? I am not sure about the license regarding the angrybots demo. 
im not sure, but i dont think so, i think thats only as a tech demo and example game, you can see how its done and base your stuff on what its in there, but i dont think you can use those exact same assets in a commercial product
Yes you can. Don’t go selling the whole project though.
I doubt they’ve changed it, but the rule of thumb for Unity’s demo projects (going back to Lerpz) has been this: You’re allowed to use all assets, as long as the project is done using Unity.
Yes, it says in the Resources section, “Please feel free to use the code and artwork for your own Unity productions.”
Same as it ever was. Same as it ever was.
I dont wanna make a new post so im just going to ask here.
How would i use their AI scripts on a sphere because there is no tutorial i dont know what ai script is for what and where it needs to be placed?
there is water at the bottom of the ocean. Move the water. Water remove remove remove…
Why is the project invisible to me i can only see colliders in scene even if render is on???
So…your saying it will be of no use after awhile? Unlike the ocean, there is copy and paste 
And you may find yourself living in a shotgun shack
And you may find yourself in another part of the world
And you may find yourself behind the wheel of a large automobile
And you may find yourself in a beautiful house, with a beautiful
wife
And you may ask yourself-Well…How did I get here?
And you may ask yourself
What is that beautiful house?
And you may ask yourself
Where does that highway go?
And you may ask yourself
Am I right?..Am I wrong?
And you may tell yourself
MY GOD!..WHAT HAVE I DONE?
Thank you everyone. 
Letting the days go by, let the water hold me down
Letting the days go by, water flowing underground
Into the blue again, into the silent water
Under the rocks and stones, there is water underground!
free?free!