The level "05-YuGiOhJCJ-FooBar" by YuGiOhJCJ[1].
The video game "Nikki and the Robots" (version 0.3.3) by Joyride Laboratories[2].
The music "Marble" by Xylo / Xyce[3][4].
[1] http://yugiohjcj.1s.fr/
[2] http://joyridelabs.de/
[3] https://8bc.org/members/xylo/
[4] http://xyce.bandcamp.com/
