[2] Between 1993 and 2000, he was a member of the Czech hip hop group WWW,[1] which played in Prague venues including Alterna Komotovka, RC Bunkr, ROXY, and Rock Café, and in 1996 supported Sinéad O'Connor.

[1][4] Other videos that received attention included Sunshine's [cs] "Days Will Never Be the Same",[5] and "Meleme, meleme kávu" (Grinding the Coffee) by Czech hip hop artists Hugo Toxxx and Vladimir 518,[6] which received Filter magazine's award for Best Music Video of the Year,[7] and was selected by the International Short Film Festival Oberhausen for screening during its MuVi programme in 2010.

[1] In 2003, Zajíček produced a short experimental student film, The End of the Individual (Czech: Konec jedince), a study of the social structure of society on a model of one's own death.

In 2011, he edited a documentary about the impact of corporate psychopaths upon society, and how the overuse of anti-depressants can result in erratic behavior; entitled I Am Fishead, it featured Peter Coyote, Philip Zimbardo, Václav Havel, Nicholas Christakis, Robert D. Hare and Christopher J.

[12] He was a co-creator (with rapper Vladimir 518) of the Czech TV documentary series Kmeny (Tribes), about urban subcultures,[13][14] and in 2015, he wrote and directed the show's episode about hackers.