By Touhou Project ← Tomboyish Girl in Love Previous track by this artist and ZUN ← Tomboyish Girl in Love Previous track by this artist.
Duration: 4:09.

Listen on YouTube.

Read artist commentary.

Tracks that reference U.N. Owen Was Her?:

From Fandom:

• national treasure by Hadron
• Carne Vale Fusion Collab by Hadron, koba, ft-rj, meems, bobthetacocat, CreatorOfJanespeak, and Interrobang
• C.S. Buttock Was Her by ft-rj
• Nakkin' Ned's Nice Naks by Interrobang
• Obana Legend Figher by AlphaShire and cookiefonster
• ...a single singularity of being... by Interrobang

From Additional Tracks:

• Final Savage Sister, Flandre S. by beatMARIO

Tracks that sample U.N. Owen Was Her?:

From Fandom:

• C.S. Buttock Was Her by ft-rj

Artist commentary:

Lilithtreasure: (wiki editor)

So the whole deal with the unofficial full/long version is that it's just U.N. Owen Was Her? and beatMARIO's Final Savage Sister, Flandre S. slapped together as a medley, one after the other, and the YouTube description doesn't even mention this.

The original in-game track (and the slightly different Dolls in Pseudo Paradise version, by extension) is much shorter than the unofficial full version medley, and does not contain Final Savage Sister, Flandre S. in any capacity.