Marine Song 2001

"Marine Song 2001" is a K.K. Slider song that first appears in. It is based on the tune Kapp'n sings in the original Japanese version of, which was altered in all localized versions to a tune based more on western sea shanties. The number "2001" in the song's title alludes to the year that both and the Japanese version of  were released. The aircheck version is by far the longest of K.K. Slider's songs, as it continues without looping for nearly three and a half minutes.

Album cover
The album cover for "Marine Song 2001" depicts K.K. Slider playing the guitar while riding in Kapp'n's boat as Kapp'n steers with a boat oar. The background features a sparsely cloudy sky brightened by the sun.

In
In, "Marine Song 2001" can only be played by K.K. Slider and obtained if its e-Reader card is scanned. "Marine Song 2001" is not played in any villagers' houses.

In
In, "Marine Song 2001" is not played in any villagers' houses.

In the intro of, a remix of "Marine Song 2001" officially referred to as "Heavy Rotation" plays in Kapp'n's taxi. It alternates between the localized version of Kapp'n's boat song and the original Japanese version, "Marine Song 2001."

In
In, "Marine Song 2001" is played in the houses of Ankha, Mott, and Scoot.

In the intro of, while riding in Kapp'n's bus with Rover, Kapp'n alternates between whistling the localized version of his boat song and the original Japanese version, "Marine Song 2001."

In
In, "Marine Song 2001" is played in the houses of Ankha, Coach, Mott, and Scoot. It also plays in Kapp'n's RV.

In
In, "Marine Song 2001" is played in the houses of Freckles and Joey.

In
In, "Marine Song 2001" is played in the houses of Flip, Grams, and Kapp'n.