|“The Ancient Art of Ninja Hide and Seek”|
|Rise of the Teenage Mutant Ninja Turtles episode|
|Original airdate|| October 26, 2019 (Nicktoons)|
October 18, 2019 (online)
|Written by||Ian Busch|
|Directed by||Sebastian Montes|
|Voice Direction||Rob Paulsen|
|Supervising Director||Alan Wan|
|Storyboard Artist:||Kevin-Molina Ortiz|
"The Ancient Art of Ninja Hide and Seek" is the fortieth episode (Episode 22B) of Rise of the Teenage Mutant Ninja Turtles. It first aired on October 26th, 2019.
Splinter teaches his sons the Art of Ninja Concealment.
- Donatello (Josh Brener)
- Gus (Fred Tatasciore)
- Leonardo (Ben Schwartz)
- Michelangelo (Brandon Mychal Smith)
- Raphael (Omar Benson Miller)
- Splinter (Eric Bauza)
- Battle Nexus Announcer (Nolan North) (debut)
- Big Mama (Lena Headey)
- Lizard Yōkai (Ben Schwartz) (debut)
- Mutant Bellhops
- Fox Bellhop (Eric Bauza)
- Otter Bellhop (Nolan North)
- Owl Bellhop (Fred Tatasciore)
- Server Yōkai (Nolan North) (debut)
- Tentacle Yōkai (Josh Brener) (debut)
- This episode, along with "Turtle-dega Nights: The Ballad of Rat Man", was leaked early online.
- This episode is one of Andy Suriano's favorites of the first season of the series.
- At the end of the episode, it is revealed that Splinter knew Big Mama back when he was Lou Jitsu.
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