first you need a photo
You get the spud shooter after defeating Annie Oakley.
you have to beat the shooting range
To use the Spud Shooter, which is found in Wild West Island, all you do is click wherever you want to shoot your ammunition. SPACEBAR=NO
you use the spud shooter which you get after you defeat everyone at the shooting contest.
The shooting contest is how you upgrade your pistol from the Pea Shooter to the Spud Gun. You have to beat all of the other shooters. The Spud Gun may be more effective than the Pea Shooter during the train robbery and/or outlaw shootout at the end.
you kill old king cole in the castle with the spud gun
Dos Cactos.
You hold the spud gun and click on the key.
You don't. The canary perched on the Mine Shack has the Mine key. Use the spud shooter (or pea shooter) to shoot it from his claws. Just step to the left and click the key. He drops the key and you can open the mine shaft.
The spud gun is used to stop the train robbery, and later in the shootout with El Mustachio and his gang at their hideout. Once you have the Marshal's badge, get a photo taken in Dusty Gulch and then get the Pea Shooter from the Marshal's deputy in Diamond Plains. Go to Dos Cactos and enter the shooting contest to win the Spud Gun.
Win the shooting contest at Dos Cactos.
there's a mini-game that you use the gun for. it's better than using the pea shooter to shoot things.