Okay, here's another weird one: Diving Machine G5 at Janfunsun Fancyworld in Taiwan, which opened in 2000.
"Wait a second", I hear you say. "Oblivion-in-a-hillside?!? What was so groundbreaking about it? Why not just mention Oblivion, then?"
Because this was the first Dive Machine to take the drop from the skies instead of into the ground. Although it came two years after Oblivion, it predated SheiKra by five years, and Vild-Svinet (the first Eurofighter) by three years, so it was built long before the whole "drop people vertically or more from a great height" gimmick became a thing on rollercoasters. While Oblivion was based on the (genial) concept of dropping people vertically into a deep hole, as a ride type it was kind of locked to that one thing. Train goes into hole, train comes out of hole, brakes, station, exit through the gift shop. G5 was built with a lot less digging in mind; instead, the whole coaster was lifted out of its hole (well, most of it, there's still a tunnel), and the drop became a high plummet from a tall structure and down to the ground. After the tunnel, the train soars up into another high element... and hits the brakes. Hey, I'm not saying this was SheiKra before SheiKra.
But still, it is a remarkable step between Oblivion and the modern Dive Machine. Although the layout is a mirrored clone of Oblivion's, it still was a neat proof of concept of the Dive Machine as a tall coaster and not just a deep one. Had the park had a little more of a budget, and B&M been allowed to do a little more to it, G5 might very well have been the first modern Dive Machine.