PS Vita is a great way to play Nidhogg. You can play in single-player mode against AI opponents, of course, but you can also connect to PSN over wifi and play against all the other players out there, whether they’re on Vita or PS4. The PS4 version works online as well, and you can even play online across systems (Vita vs PS4!!). If you’re out of wifi range and you just want to play someone on the bus you can do that in Vita to Vita ad-hoc mode. If you just have one Vita and two people, you can still play! The left stick controls one player and the right stick controls the other!