Secrets and Tips: How best to get a platnium medal.
Look for the scarecrow in the first screen in the Target Shooting stage of Levels 1, 3, 4 and 7. Shoot the scarecrow's body eight times to inflate the head and then shoot the head for 1,000 points. Do this to the scarecrow on the second screen as well.
If both scarecrows were shot for 1,000 points you will be taken to a secrect area for the third screen that is filled with green targets.