Badges (GTA2)
From WikiGTA - The Complete Grand Theft Auto Walkthrough
GTA2 badges, also known as shields or tokens, are small shields in the shape of the GTA2 logo. Each district of Anywhere, USA contains 50 hidden badges. Many badges are difficult to reach or find. When you collect all badges in a district, you will be rewarded with a bonuslevel. GTA2 badges are the first Hidden Packages of GTA.