Towerfall has been called "one of the best things you can do on a couch," which is high praise if you think about all the good things you can do on a couch. You can eat pizza and drink whiskey on a couch. You could read a book on a couch. You can do Tom Cruise cosplay on a couch. You can pretend your couch is a boat and that you are braving treacherous seas as if Neptune himself had damned your voyage. You could have sex.
Now that Towerfall has thankfully left the Ouya exclusivity and seen its updated PC and PS4 release, you should get playing. It's looking like the best local multiplayer this side of Samurai Gunn. My only regret is not getting together with friends to play videogames as much as I did in the halcyon days of youth.