hello, I think it would be nice to be able to do the campaign and endless mode, in the coperative multiplayer, it would be cool even if you had the twitch mode why would you give it to play with friends

co-op is definitely something a lot of people want and, in my opinion, would make a lot of sense for the game; while I can't speak on behalf of the developers, I'd say it's a pretty safe bet that it'll be added eventually.