Adventure World

Adventure World is the eighteenth ending theme of the One Piece anime sung by Delicatessen. So far it is also the last ending theme of the series as the show switched to two and a half minute intros after this to make room for more show time, leaving no room for ending themes.

Ending
A chibi Luffy comes into a room with a portrait showcasing fanart (sent in by younger viewers in Tokyo). He beckons the rest of the Straw Hats (also chibi) to join him which they do and observe the fanart as it scrolls by. Halfway through the song, Chopper sneaks away to the left side of the screen and re-appears on the right as Chopperman, doing a few loops in the air. None of the Straw Hats notice though, save for Robin. Chopper then flies back to the right side of the screen and rejoins the crew from the left though disappointed none of the crew had seen him. Robin pats him on the head as the song ends.

Romaji
Tachihadakaru kabe ni motto (motto) tachimukau

Ima minagiru chikara motte (motto) tsukisusumu

Osorenai subete nageuttemo

Saigo ni kitto warau tame

[Hyoutan]

HEY! Kono te de tsukamitoru ze nanba-wan jiyuu jizai mezasu wandaarando

Hora kasukana hikari ashita e no michi ichikabachika kirihiraku jidai e

Itsumo chikara ippai de LET'S GO eikou tsukamu nara kitto

Ima shika nai osorenai itsuka nakama to tomo ni kachitoru mirai

[Marky]

Arekuruu nami wo koe hikari ga terasu hou e

Ate no nai mirai e zenshin masshoumen kara tachimukau

Uchiyabure hakarishirenu kabe ni DIVE! osoreru koto naku

Ima kakegaenonai nakama to saa TAKING MY DREAM

Tachihadakaru kabe ni motto (motto) tachimukau

Ima minagiru chikara motto (motto) tsukisusumu

Osorenai subete nageuttemo

Saigo ni kitto warau tame

[Sir-Yang]

Haretari aretari no kondishon ni kontoro dekinakute

Kibun mo rizumu mo marude ijou kishou

Te wo sashinoberu nakamatachi no sawagu koe ni tsutsumarete

GET ON UP, YOU DON'T STOP tokihanatsu no sa YOUR FEELING

[BA-K]

Shuppatsu shinkou (LET'S GO) Kimi to tsukamu eikou (eikou!)

FREEDOM ni takanaru kodou ounabara de kakageru yuujou

Koukai wa koukai wo senu youni

Goukai ni mokuhyou megake LET'S GO

Ho tatete mou mattanashi te ni suru ikita akashi

Tachihadakaru kabe ni motto (motto) tachimukau

Ima minagiru chikara motto (motto) tsukisusumu

Osorenai subete nageuttemo

Saigo ni kitto warau tame

Genkai buchi atatte migihidari dounimo ikanakute

Namida de sora ga kasundatte zenshin MY WAY

Hora hirogaru sekai e motto (motto) hashiridasu

Ima michinaru chikara motto (kitto) tobidaseru

Osorenai mayowanai

Nani ga attemo saigo wa kitto

Tachihadakaru kabe ni motto (motto) tachimukau

Ima minagiru chikara motte (motto) tsukisusumu

Osorenai subete nageuttemo

Tsukisusume mae e

Kakedasou asure

Saigo ni kitto warau tame

Trivia

 * Different fanart is shown with each airing of the ending.