In this video Virtual Reality Oasis shows us all seven endings in Duck Season VR and how to get them;
01:11 ‘Canon’ Ending Shoot the dog. Successfully kill the dog in-game and when he comes into the house
03:28 ‘Stuck Forever’ Ending Shoot the dog. At the final stage lose against the dog in-game and you will be stuck in the TV
04:44 ‘Dead’ Ending Shoot the dog. Kill the dog in-game, but get stabbed when he comes into the house
05:43 ‘Best Men’ Ending Shoot the dog. After level 6 pick up the phone to call Police and say something or leave phone off the hook
07:04 ‘Nuke’ Ending During any level if your shotgun glows yellow shoot the sun
08:11 ‘Fiesta’ Ending Don’t shoot the dog at all during playthrough
08:45 ‘Final Dog’ Ending Play through the game a final time after obtaining 6/7 endings and don’t shoot the dog. After the ‘fiesta’ ending press skip and go back to the livingroom.
You will find a new VHS tape saying ‘it’s me’ and you will get the ‘Dog Ending’.
Source: Virtual Reality Oasis