Cosmo Run

As the description says, you need to finish 6 runs in a row with the exact scores listed in the description. This achievement is more about luck than skill, since you'll easily be able to surpass 42 with all the practice you'll get. The luck comes in the form of the stars that automatically show up on the path. Stars give you 3 points, and their positioning on the path can end up screwing up your score. For me, getting a score of 8 was the hardest one because a star was often on the path right before my 8th turn, and the 3 points from the star would put me over 8. The rest seemed to line up that stars didn't mess up my scores.

This will definitely take a few tries to get everything to line up properly. Thankfully the runs to get these scores are very short and fast, so keep at it and eventually you'll get all six runs in a row at the right scores.

As a side note, if you're wondering why these six seemingly random scores, the numbers are a reference to the TV show Lost.