I enjoy the game, especially the power ups but they feel intrusive when they stop the game in its track to make you select one. I suggest making a linear set of power ups that are applied automatically as you level up or randomize them to add more variety with replays.
Also the laser loop when going off screen which at first made me think I was being attacked. I don't know if the looping environment was intentional but I think it was an issue for me.