The prototype playfield included an additional slingshot and a vertical up-kicker not present on production games. These two prototype items are represented on the charts and tables in the manufacturer's Operations Manual included in this listing. Production Run Records for Radical!: Production Start Date: Jun-14-1990 Production End Date: In Sep-1990 Production Run Quantity: approximately 1328, shipped quantities increment up to 1332 without notation. First ship date: In Sep-1990 Last ship date: In Sep-1990