You need to investigate the murder of the Baron.
But first you need a sworn statement from his brother. Use the cabinet on the left to get a blank STATEMENT out. Then give the statement to the Baron’s brother and he’ll give it signed back to you. Use the door to leave the office and walk to the right. You’re now in the streets of Reality.
Walk to the left and select the courthouse on the map. Inside talk to the judge and ask for a warrent. Give the statement to the judge and you have your permission to arrest the chicken. Walk to the south to leave the courthouse and select the farm on the map. Use the door of the left barn and inside use the ladder to climb upstairs. Someone left his GLOVE here. Pick it up and use the ladder again to climb down.
Walk to the north to leave the barn and walk to the right to leave the farm. On the map go downtown. Walk to the left and go north into the alley. Enter the jailhouse and use the glove to get a SPINE from the cactus. Use the door to leave jail again and walk to the right to reach the streets again. Walk to the left to see the map and select the farm again.
Use the door of the barn on the left to go inside and use the spine on the pig to kill it. Use the pig to take a hunk of MEAT. Walk north to leave the barn and to the right to leave the farm. Then select downtown again. Walk to the left and give the meat to the fat boy blocking the entrance to Scid’s. He’ll leave. Use the door of Scid’s to enter and use the handcuffs on the chicken to arrest him.
Use the door to leave Scid’s and walk to the left to reach the map. Select the courthouse on it and watch Judge Rudy give her verdict and sentence the bird. But then there’s fowl play.
Game source: A copy of the game was found here on the internet.