yup you are right! its really the Mandom GATSBY moving rubber wax that Kimura-kun advertised on...
one day, when we were watching the tv, and my dad was at the house garden blowing his Chinese Flute..
this advertisement came out again, and at the same time my dad came into the house, and he started dancing the same thing Kimura-kun danced!!!
i was so SHOCKED and i started laughing (but i dunno why)...
i really can't imagine my dad dancing Popping + Wave in front of us!!!