Here is the full list of all 15 SPEEDRUNNER achievements.
Run through the first level faster than 31s.
Run through the second level faster than 26s.
Run through the third level faster than 44s.
Run through the fourth level faster than 37s.
Run through the fifth level faster than 31s.
Run through the sixth level faster than 45s.
Run through the seventh level faster than 48s.
Run through the eight level faster than 55s.
You have cleared all levels with the highest tempo possible!
You have looted all possible chests in the game.
You have cleared all levels up to 7.
Your total death count exceeds 200.
You finished the tutorial.
You have spent more than 1 hour in the practice area.
The sum of your total highscores got less than 300 seconds.