EA and Respawn Entertainment have opened up the Xbox One Titanfall Beta for everyone this weekend, no code needed.
In addition, the Titanfall Beta has been extended for at least one more day. In accordance with Major Nelson of Xbox Live,
To download the beta, sign in to your Xbox One and head to the “New Game Demos” section of the Game Store and it will appear there. You can also say “Xbox Bing” then “Show me game demos”. Also, in some Xbox Live regions you’ll see a “Join The Titanfall Beta” link on the home page of Xbox One, next to My Game and Apps.
Note: It may take some time until all Xbox One’s can see the demo in the store. Some members may see it before others. Until then just relax and rest assured everyone will see it soon.
Let us know if you’ll be signing up for the Titanfall Xbox One Beta.
Source: Xbox Live: Major Nelson