Back

U-Boat Ultimate

Character

U-Boat Ultimate is a refined Stand that Kars builds by upgrading U-Boat, appearing in the JORGE JOESTAR light novel among the powers of the 37th universe. Shaped like a sleek submarine, it weaponizes sound, firing punishing high-frequency blasts that keep ringing long after the assault ends.

User: Kars
Stand Type: Long Ranged
Stand Name: U-Boat Ultimate
Manga Debut: JORGE JOESTAR Chapter 12: Rhinoceros Beetle
Namesake: Das Boot (German war film)
Text Size

Overview

Kars devises U-Boat Ultimate by pushing the earlier U-Boat to a stronger tier, and it turns up in the light novel JORGE JOESTAR as one of the Stands tied to the 37th universe. Its name nods to the German war picture Das Boot, and the base form it grew out of supplies the rest of its identity. It is also referred to as Das Boot Ultimate.

The build reads as a polished submarine rather than the rougher original that Narancia wielded. Antennae are gone, jet engines sit up front, and floatplanes ride along each flank. It also drops the torpedo tubes entirely and finishes in a rounded nose.

Text Size

Mechanics

The Stand's core trick is an upgraded sonar that channels a piercing high-frequency tone out through a body. When Kars turned it on Pucci and Joji, the blast landed like a detonation, and the noise went on echoing inside their ears even once he had shut the Stand down.

Text Size

Notable Users

Kars alone commands U-Boat Ultimate, having engineered it himself within the events of the novel.

Share this resource

Frequently Asked Questions

What is U-Boat Ultimate?

U-Boat Ultimate is a refined Stand that Kars builds by upgrading U-Boat, appearing in the light novel JORGE JOESTAR among the powers of the 37th universe. It takes the shape of a sleek submarine and weaponizes sound.

Who uses U-Boat Ultimate?

U-Boat Ultimate is used solely by Kars, who engineers it himself within the events of JORGE JOESTAR.

What does U-Boat Ultimate do?

U-Boat Ultimate's core power is an upgraded sonar that channels a piercing high frequency tone out through a target's body, landing like a detonation whose noise keeps echoing even after the Stand is shut down.

How does U-Boat Ultimate look different from U-Boat?

Compared to the original U-Boat, U-Boat Ultimate reads as a more polished submarine. It drops the antennae and torpedo tubes, adds jet engines up front and floatplanes on each flank, and finishes in a rounded nose.

Who has Kars used U-Boat Ultimate against?

Kars turns U-Boat Ultimate's sonic blast on Pucci and Joji, an attack that lands like a detonation and leaves their ears ringing even after the Stand shuts down.

Sources & Information

Looking for more on U-Boat Ultimate? The JoJo's Bizarre Adventure Wiki on Fandom has a dedicated page with community notes.

View on Fandom

This content is original writing by Daddy Jim Anime based on the JoJo's Bizarre Adventure anime series, manga, and official materials. JoJo's Bizarre Adventure was created by Hirohiko Araki, published by Shueisha, and animated by David Production. All rights to JoJo's Bizarre Adventure and its characters belong to their respective owners. Episode and chapter references are cited where applicable.

Rights holders

All rights belong to their respective owners.

Character and scene imagery on this site is original artwork by Daddy Jim Anime, not screenshots or licensed imagery. Official cover art is used on three types of pages for editorial commentary:

  • Movie pages: theatrical posters and key visuals, credited to David Production and Shueisha.
  • Game pages: official box art, credited to the game's respective publishers.
  • Manga chapter pages: volume covers, credited to Shueisha and Hirohiko Araki.
  • Licensed imagery: Photographs of real people, including creators, voice actors and production staff, are used under licence from the rights holder or the applicable stock provider, or under the terms of a public licence permitting editorial use. Each such image is reproduced in its licensed form and remains the property of its owner.
  • Exceptions: Limited exceptions to the practices described above may apply to individual entries. Where an exception applies, it is noted on the entry itself alongside the applicable attribution. Rights holders may contact us regarding any attribution and it will be reviewed promptly.

Help Us Keep This Wiki Accurate

Daddy Jim Anime maintains this encyclopedia. If you spot an error, a translation issue, or something that doesn't look right, let us know.