u/AllisMables

Here is the Defibrillator at Funtopia, slightly modified. Obviously, the ride as designed by Chris Sawyer can complete the layout with only the first incline powered, but let's say you wanted to make a larger layout that ate up too much speed and needed an extra kick on the far side hill in order to return to the station. In the picture above, it is shown in yellow.

The real-life boomerang (very similar to Defibrillator) can do it, so it seems like there should be a way to do it in OpenRCT2.