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