Here is the full list of all 23 Duck Season PC achievements.
Tried to get Mom's attention
What time is it really?
Dog
Set the table for dinner
Kill 100 Ducks
Stuck forever
Platoon ending
Shot the sun with the golden shell
Cannon Ending
A better game
Its over, you lose
Kill two ducks with one shot
Shoot all the cattails in game world
Flip the sign in the game world
Shoot the dog more than once in a playthrough
Don't shoot the dog in a playthrough
Shoot the sitting duck in the game world
Inspect the globe
Use the Kid Wizard Book
Throw something out the window
Beat All Cartridge Games
Watch all the VHS tapes
Survive the zombie attack