The Dive Coaster (also known as "Vertical Drop Coaster"), first built in 1997. It is a steel roller coaster type made by Bolliger &amp; Mabillard (B&amp;M). The first drop coaster was made in 1998 at Alton Towers and is known as Oblivion, the latest Dive Coaster (at the time of writing this) is Emperor at SeaWorld San Diego in 2020.