On October 25, 1985, Marty plugged the guitar into the CRM-114 amplifier in Doc's garage and struck one note before being blasted to the back of the garage. On May 14, 1986, the guitar was unexpectedly up for sale, but Marty was able to get it back from his father George McFly. Though he left it as soon as the DeLorean showed up. On October 12, 1931, Marty tried to use his guitar to reach a fake diamond from the Hill Valley of the Future exhibit, but to no avail.