It's a online duel game where you play a submarine. Since you are a submarine, you are usually submerged (that's what submarines are for), so your opponent can't see you, and you can't see him either.
You can use your sonar (RT) to reveal enemy in certain directions, and then shoot torpedos (LT) to bring him down. If you can't manage to hit him or find him using the sonar, try aiming (RS).
Your are constantly moving, but you can slow down (LB) or accelerate (RB), and if you run out of ammos, emerge (X) to refill your stock, brought by silent invisible untouchable choppers.
Good luck and have fun !
(You need two Xbox 360 controllers and a friend to play)
Adobe Illustrator - Adobe Photoshop - Aseprite - Bfxr - MuseScore 2
Launch two instances on two computers on the same network.
On one of them, click on "host".
On the other, click on "options", enter the host's local IP, and then click on "join".
Then grab you controller and have fun !