First entry I've tried and I'm really impressed.
You do a good job of making the game playable with the checkpoints so that you can focus on the messaging rather than "winning".
Controls work well.
The trail and checkpoints are a good way of keeping people on track.
The terrain is really good, I particularly like the dust particle effects.
Got to about 1.7 km on the first try and got to make lots of mistakes and read the messages.