The video has the five Kakurangers listing off the five keys of being a ninja as found in a hidden scroll locked in their secret headquarters.
Teruaki Ogawa
Sasuke / Ninja Red
Satomi Hirose
Tsuruhime / Ninja White
Hiroshi Tsuchida
Saizou / Ninja Blue
Shun Kawai
Seikai / Ninja Yellow
Kane Kosugi
Jiraiya / Ninja Black