Here is the full list of all 20 Alpha Runner achievements. It takes around 2-3 hours to unlock all of the achievements on Windows.
Experienced the rain mini game 100 times.
Died over 1000 Times.
tried blocking the hammer with an umbrella.
Tried out practice mode
Die a total of 500 times.
Experience the world upside down in mlg mode.
Found a way to get rid of the hammer.
Die a total of 250 times.
Complete your first speedrun.
Die a total of 100 times.
Die while being 1m away from the finish in speedrun mode.
Die a total 50 times.
Get a score of 10 in one game.
Jump 10 times in one game.
Die with a score of 007 while only wearing the secret agent glasses.
Earn your first point.
Die for the first time.
Die without earning any points.
Actually you started the game. Thank you for playing.
Get a score of 200 in a single game.