Too Long; Didn't Read
The complexity of a system and the functionality offered by the interface to access said system go hand in hand. Retro games like Mario or Dave had at max 4 or 5 types of moves for the entire game-play; RPGs today use controllers that help navigate their respective ‘game worlds’ through an array of basic, advanced and special moves along with various customization capabilities for both the character and the setting of the game world.