Thats very easy, Just rotate the coaches 180 degr and then the launch is still forward but with the coaches turned it feels like backwards.
Clever design by Vekoma. As u can see in my previous YT video.
The heights on the border of the area might be a lil on the high side. But I don't know if u been in the park recently ?? The walls near Wuze town are HUGE.
The video POV is rotated 180 degrees coz the original coaster was a SIT down.