Tie between Borderlands 2 and Dust: An elysian Tail.
I would really say ME3 co-op, but recently with the changes I get more frustrated. They really balanced the game around the new classes they made, leaving the classes I loved to be neglected. That and they made the game way harder and I just don't enjoy it as much.
The snipers I loved are just no longer as effective since the tac cloak nerf. Enemies have more health. I used to run silver and be able to carry the team, but now I have a hard time keeping up with others.
I would really say ME3 co-op, but recently with the changes I get more frustrated. They really balanced the game around the new classes they made, leaving the classes I loved to be neglected. That and they made the game way harder and I just don't enjoy it as much.
The snipers I loved are just no longer as effective since the tac cloak nerf. Enemies have more health. I used to run silver and be able to carry the team, but now I have a hard time keeping up with others.