Name – 快晴・上昇・ハレルーヤ, Kaisei Jōshō Harerūya
Artist – Jindou
Credits for Gallop for creating the Opening, and for Jindou for perfoming the song.
This Ending appears in the episodes 1-33. Replaced by 99% by BOWL.

Lyrics (by Yu-Gi-Oh! Wikia)
Romaji
Sailing My Sea! Yeah Never Say Die Gotta Go! Go!
asu eno chizu o hirogete michinaru minato e Go Along Along
Get on the Deck! Get on the Deck!
sonote de kaji o tore
Get on the Deck! Get on the Deck!
yoake no umi eto fune o dase
seiippai Hallelujah
imadaho o age nakama to tomo ni
kaisei no sora no shita yume to yuuna no daikoukai e
koerarenai mono wa nai kaze o ayatsuri
dokomadedemo jiyuu ni yukeru
Leap On Leap On sora o miro umi o miro
somatta isshyoku no ao WAO WAO
shiranaimonotoka motto shiritaikara Go Go shukkou
nenryoo ta-n-ku mantan mawasu i-gu-nision
kaji to Combination nami to Session
akero Tension kaizuhirogete Adventure
Danger kuguri nukete Ocean Liner
kaisei no sora no shita yume to yuuna no daikoukai e
koerarenai mono wa nai kaze o ayatsuri
dokomadedemo jiyuu ni yukeru

WACOCA: People, Life, Style.