Friendship, my dear chum Pip will explain with groaning resignation, can be trying. (I don't think 'trying' is the word she'd select.) Take Friendship Club official site too - not a game about chums chatting, dancing, Doting, and dining, but rather a competitive local multiplayer twin-stick shooter.
Up to four players blast away at each other with bouncy bullets which ricochet around procedurally-generated arenas, making for a lot of bullet-dodging sillymurder. It's fine, it's fine - you're all playing the imaginary friends of a child named Timmy Bibble. Following a low-key alpha access run by makers Force of Habit, Friendship Club is now on Steam Early Access.
I haven't played Friendship Club myself, but it's been doing the rounds at events for a while and I've heard pretty good things. It already has a good handful of modes, and Force of Habit plan to add a way to make your own modes. They also plan to add more modes and arena styles, a dynamic soundtrack responding to action, and a single-player mode over the course of Early Access. They're not sure how long this'll all take before the game properly launches.
Anywho, right now it's £7.19 on Steam, a price which'll go up over the course of development. Here's how it looks at the moment:
An old build from November 2013 is still on Game Jolt if you're curious, though obviously the game's come a way since then.