My review, your game.
Please change the music, anyone who's touched FL, or listened to amateur music is haunted by the presets used in the song. I hit the wall so I could stop hearing the music. It sounds as if written by someone writing with no music theory, just trial and error.
Game progression is slow, could be sped up.
Due to the nature of the inner and outer walls being mimics of one another, all you need to do is focus on sticking close to the inner without hitting, and the outer wall is of no concern in terms of dodging. If perhaps the outer was displaced in its phase compared to the inner wall, it would have more of an impact on game play.
Visually I found the game very enjoyable. It could have more frills to add to the psychedelic nature, but its certainly a strength in its current state.
Concept is a nice twist on the old helicopter game.
If perhaps the walls were further apart, and both randomized to an extent (with some constraits to avoid impassable points), and the addition of a key to lower the object, you'd have a 2 button game where you would have more control over your action. I think it would make things much more interesting, and more engaging for the player.