The Hardest Flight is a simple game, but a hard one too.
You fly through different coloured walls, changing the colour of your ship's shields to pass through them unscathed. Get a colour wrong though and boom, it's game over, and you've nothing left but your score.
The controls are responsive, the gameplay mixes it up just enough to keep you interested, and thankfully there's the option to turn off the annoyingly intrusive interstitial ads that pop up every other time you press retry.
The Hardest Flight comes to iPhone and iPad on the 5th of February, and it'll be free-to-play.