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.
Get a score of 200 in a single game.
Died over 1000 Times.
Die a total of 500 times.
Die a total of 250 times.
Experience the world upside down in mlg mode.
Found a way to get rid of the hammer.
tried blocking the hammer with an umbrella.
Complete your first speedrun.
Die while being 1m away from the finish in speedrun mode.
Tried out practice mode
Die a total of 100 times.
Die with a score of 007 while only wearing the secret agent glasses.
Die a total 50 times.
Die without earning any points.
Get a score of 10 in one game.
Jump 10 times in one game.
Die for the first time.
Earn your first point.
Actually you started the game. Thank you for playing.