French program from 2009
The program is Listed at end of video.
From the author (Courtesy of CPCPOWER):
"This one is a tunnel, just to show you that Backtro was not that difficult to do. It even features a sidsound."
Links:
https://www.cpc-power.com/index.php?page=detail&num=7527
https://cpcrulez.fr/demostestDO_rotater_pas_cher.htm
https://www.pouet.net/prod.php?which=52819
https://www.cpc-power.com/index.php?page=staff&lenom=PulkoMandy
https://cpcrulez.fr/auteur-pulkomandy.htm
Not emulated - original hardware and software.
Please note that the aspect ratio for this YouTube video is 16:9 but the CPC monitor
has an aspect ratio of 4:3 so you may wish to adjust your viewing device accordingly.