Invincible King Tri-Zenon is a Japanese anime television series created by E&G Films. Directed by Takashi Watanabe and written by Katsumi Hasegawa, the anime's 22 episodes were broadcast on TBS between October 14, 2000, and March 17, 2001. It took over the Saturday 17:30- 18:00 timeslot once claimed by the Sakura Wars TV series.