User Experience
User Experience refers to a person's overall perception, emotional response, and attitude towards the use of a particular product or system. In the context of game development, UX can encompass anything that affects the overall feel of the game with exception to the rule set and game content. In practice, UX translates into input mechanisms (controls), menu and interaction flows, interface animations and sound effects, camera systems, and game feedback.
Player input
The design and execution of input methods (that is, controls) can make or break your game. In this day and age, players expect the developer to adhere to a set of gold standards in the input department. For this exact reason, platform holders such as Sony, Nintendo, and Microsoft have created their own set of guidelines to ensure that platform-specific input methods and control functions (that is, how to pause the game) are adhered to.
Nowadays, console action games are almost certain to use the left analog stick...