I'm the type who doesn't read description, so I thought the white sphere was collectable at first.
Some suggestions if I may.
- It would be good to have visual cue that tells you that the white spheres are harmful, like adding some spike or make it red.
- Also, it kinda blend with the background, so having some sort of contrast would be nice.
- The character is blocking too much of the view, especially in the direction where the danger is coming from. Maybe could try changing the camera angle, like how modern third person shooter games do these days.
- It's a bit different to tell the movement of the spheres. Maybe could add a trail renderer, so that the flow can be visualised.