Nice concept.
I played it, had no idea what the white line did ... thought it might be some laser-sword and then some stick to keep pushing yourself between the trees and benches.
And then I read here (in the comments) that it was the direction you would boost towards ... and suddenly it made sense.
If you'd replace it with an arrow or anything, that would be a lot more clear what it did. Now it looked like something the guy was holding in his hands.
But overall nice concept, love the art-direction and the SFX really gave a sense of presence.
Lovely submission