There's also a set of arcade challenges with fixed tracks and cars to try and beat, along with single event and time trial modes. (toucharcade.com)
The other fix tracks how many times an account votes that reviews are «helpful» for a single game. (engadget.com)
And its survival levels, because they do take place on fixed tracks, is itself a unique structure, as even though Unpossible boasts fixed daily levels, these are a beast in and of themselves. (toucharcade.com)