Does this game have local co-op?
Sadly not, only one person can play per device and you require an internet connection to play the game so you can't in a classical sense :/
A little work around. If internet is not a problem and your friends have their phones, a little none conventional co-op that can happen, is if they download the game on their phone and use it as a controller while you all watch the same monitor. Which of course is not local co-op in a technical sense but it's a way i've done it with friends which gives a fake sense of local co-op. hehe.
sorry for that <3