Honestly I had a number of inspirations thinking about the first concept of the game but the name came instantly after the character theme, of course the main aspect of the game is the Jacket that the player is given and this was influences from my love of the characters from Devil may cry and how stylish they are in badass Jackets. 

Moving to the actual game idea I want to keep it short and sweet with a health bar and a special bar for the UI similar to Monster Hunter

Its easy to see where everything is along with its function at least regarding the top left corner 

As for how the game would look it would look similar to older Pokemon games with pixelated models within a pixelated area. But I wanted to show more detail at least for the main character and the Jacket with a design similar to Project X zone