Select New Game (Dismiss Tutorial if this comes up).
Scroll right and select 'Open the Gallery'.
Search for 'Legacy Trop-Hee Family' and download the family made by 'Misier'.
Select 'Place Household' and choose Replace. After this go to the bottom right and press 'Play'.
Next choose 'Willow Creek' & then 'Streamlet Single'. Press confirm to load up the map.
Finally press the Ultra Speed button and the achievement should pop within a few seconds.