Not every Japanese Only Game Boy Advance title, but the most interesting to me. Some have been released in English on other consoles or fan translations.

MISSING:
Zero Tours (Mugen Kinogyou Zero Tours/ゼロ ツアーズ)
Elemix!
Doubutsujima no Chobi
Wanko Mix: Chiwanko World
Aka-chan Doubutsuen
Nakayoshi Pet Advance Series
Watashi no MakeSalon

BROKEN COVERS:
Guranbo/Granbo/グランボ (wrong cover)
Sylvania Families: Fashion Designer ni Naritai! Kurumi Risu no Onna no Ko (wrong cover)