Free Avatar Shirt & In-Game DLC Skin!
Enter the to win at https://injustice.dccomics.com/. Region restrictions may apply.
Getting the Avatar Flash T-Shirt can be tricky, since the website since to be buggy. Here's the workaround if you're having trouble.
First, go thru the motions for voting till you get to the point of choosing your free content and select "Avatar/Theme".
Next open a new window, go to Facebook apps management and remove the Injustice contest app.
Now go back to the "Avatar/Theme" window where you are supposed to like the page.
Like the page and make your selections but DO NOT select confirm.
Open a new window and in this new window go back to the contest page and begin to vote again. You should get a popup asking you to log into the app via Facebook. Login and re-grant the permission then go back to the window with the confirmation prompt and finally select confirm and you should then get your code.