It's the simplest a game can get, you avoid objects by switching between two lanes. I didn't notice any mistakes, so it's flawlessly made, though. Because so many games have some kind of lag in the movement, it actually takes some time to get used to the instant lane-changing. There's even a vertical line to show where the ship exactly is in a given moment, so it's all up to you and your finger - it would be interesting to see a serious world record attempt in a game like this.
I'd like to invite your game to our contest, the Game Development World Championship!