Casper is a cutesy little game, I have to say, with cute graphics and short, yet fitting music, but it feels more like a prototype or a vertical slice rather than a game. There is no real goal, which made the game feel very empty, and the movement felt a bit floaty due to its reliance on physics-based movement. If there was a bit more to the game, I would definitely play it more than I did, but at the moment it's a bit too empty.