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Then tell me how to improve them. The character is currently controlled from the viewing position of the camera, which was the only logical choice during development

Hiya,  the controls are difficult and annoying at times to grasp.  Many moons ago there was a game released called Alone in the dark.  The controls of this game are very similar.  It depended on how the camera viewed the room as to how the controls would work.  With enough practice an patience you can grasp the concept.  

I think the game is popular for its originality, story line and art style.  You can look at the controls as adding a layer of difficulty to the game.