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