Sayonara Umihara Kawase was originally a 2D flat screen format game and also the latest entry in the Umihara Kawase game series. The action/platformer game by Saizensen was released on the Nintendo 3DS, Playstation Vita and PC over the last couple of years.
Umihara Kawase is a girl who uses a fishing hook as a grappling hook. You’ll need quick reflexes to swing your way through the branching surreal environments. Use your brains to figure out the best way through. They say fish is brain food—you’re going to need it!
A PDF file for the game which briefly touch on the basic actions for the game has been released here too. There are also some screenshots for the Gear VR version of the game, which you can view below.