MOUSE: P.I. For Hire Xbox Series X|S Digital Key is a fast-paced first-person shooter that blends the vibe of 1930s cartoons with noir, detective intrigue, and fast-paced action in the style of classic boomer shooters. The game is distinguished by a black and white, hand-drawn rubber hose setting, which makes each location, opponent and animation look like a fragment of an old animation transferred to a violent FPS game.