I think "Thirua disco" is one of the catchiest eroge songs I've ever heard.
Especially if you listen to the lyrics.
I would like for someone else to try and translate it? I'll give it a shot soon... I'm replacing the other post because this one has the correct lyrics, unlike the other one.

https://youtube.com/watch?v=MJUCSkUNtQc 
https://youtube.com/watch?v=NbsX7Zcu5hs 
https://youtube.com/watch?v=c78xWE_2bWA

Lyrics source:
https://www.joysound.com/web/search/song/126969