Of course, Hawk also pumped up his skateboarding. He traveled around the world to skate in exhibitions, and year after year he swept the X Games, taking home both singles and doubles titles. By 1999 the king was back on his throne. During the 1999 X Games, Hawk made history during the Best Trick event, when he introduced a move called the 900, a move so spectacular and dangerous that no one has successfully landed it since. The 900 is a two-and-a-half rotation midair flip above the lip of the vertical ramp. Hawk had been working on the move for more than a decade, and had been seriously injured along the way. Landing the 900 was a personal triumph. As Hawk explained to Rose, "I just felt this great sense of relief that I'd finally conquered this beast that had plagued me for so long."