Achtung Baby

Achtung Baby (アクトン・ベイビー) is the Stand of Shizuka Joestar featured in Diamond Is Unbreakable.

Appearance
Achtung Baby is bound to Shizuka's own body, granting her the ability to turn invisible. Thus it doesn't have any appearance to speak of.

Abilities
While theoretically useful, Achtung Baby is in practice an inconvenience due to it's user being an infant.

Invisibility
Achtung Baby has the power to render its user Shizuka invisible. While Shizuka's infantile nature means it can't be activated manually; for now it automatically activates defensively triggered by Shizuka's stress level.

This application of Achtung Baby only causes Shizuka's body to become invisible, although this nuance is cancelled out by the other application of Achtung Baby.

Bizarrely, Shizuka has always been shown to be invisible, probably due to her parents being absent and being in the care of strangers.

Area of Effect Invisiblity
Achtung Baby also allows Shizuka to cause any or all objects with a short range of her (approx. 5 metres) to become invisible as well. Shizuka, being an infant, has no control over this application; it activates automatically and randomly when Shizuka becomes stressed.

Objects effected by Achtung Baby will remain invisible even after they leave the Stand's range, but will become visible again once Shizuka calms down. Manga=

Trivia

 * Araki admitted the sole reason for creating the Stand was for Josuke and Joseph to have a bonding adventure.
 * The term "Achtung" is German and translates "Attention/Caution".