Very closure like, I think you should mention it
You can tell that the art style and to some extent the gameplay were inspired by closure, but it still stands on it's own as a game. I really feel like you should of put some credit toward Closure, but that's not really necessary.
I like the idea behind the game but a lot of things were hard to use or didn't make sense. I'm not entirely sure if it's what you were going for, but I think using the ball and the radiating circle to simulate the senses of touch and hearing was pretty damn clever.
The only problem is that the ball and the radiating circle don't give you enough detail of the surrounding ground to do anything. With the ball, the mechanic works, it's just very difficult to use. I can't really think of any time when I needed to actually charge the ball up. Being able to throw it outright without any charge would've worked fine, and it would've made it much easier to use. The radiating circle could've been wider also.
Just changing those little things up I would make the game a lot better, in my opinion.