

Episode 161: “The Ordeal of Spheres! Desperate Struggle in the Lost Forest!”
- 161 of 1180
- July 20, 2003
- 24 min
- Aired
| Series | One Piece |
|---|---|
| Episode | 161 of 1180 |
| Japanese | 「玉の試練」の脅威!迷いの森の死闘 |
| Original air date | July 20, 2003 |
| Episode length | 24 min |
| Studio | Toei Animation |
| Previous episode | Episode 160: “10% Survival Rate! Satori, the Mantra Master!” |
| Next episode | Episode 162: “Chopper in Danger! Former God vs. Priest Shura!” |
| Streaming | Crunchyroll, Netflix, Hulu |
“The Ordeal of Spheres! Desperate Struggle in the Lost Forest!” is episode 161 of the anime One Piece. It first aired on July 20, 2003.
Summary
A summary of this episode has not been written yet.
Music in this episode
- OP 3“Hikari E” — The BabystarsAnimeThemes
- OP 3“Hikari E” — The BabystarsEnglish VersionAnimeThemes
- ED 10“FAITH”English VersionAnimeThemes
- ED 11“FAITH”AnimeThemes
Where to watch
Streaming services that list One Piece. What you can watch depends on your country. Acino does not host any video; each link leads to the service's own page.
Episode guide
About the series

The anime follows Monkey D. Luffy and his crew as they travel across the Grand Line in search of the greatest treasure in the world, One Piece. Luffy's reason for being a pirate is one of pure wonder and adventure, driven by his childhood hero, the Pirate King. The series is known for its crazy adventures, dark…
Read the article →References
- “One Piece”. Kitsu. Retrieved October 27, 2026.
- “One Piece”. MyAnimeList. Retrieved October 27, 2026.
- “One Piece”. AnimeThemes. Retrieved October 27, 2026.
Episode titles and air dates come from Kitsu. The summary is written by Acino with AI assistance and checked so that it does not copy other sites.