Oh shit is an expansion on the Crystal Rain concept. In this survival mode collectathon, your goal is to see A, how long you can last and B, how many of the items you can grab.
However, there are not just rocks falling from the sky – nope, this is where the similarity to Crystal Rain stops. As the game progresses, a number of things will begin to happen:
-the playing field will grow ever larger.
-Cannons will spawn.
-Pits will open up at random locations.
and more.