Mobile Suit Gundam: Battle Operation [NPJB00178]

Error message in Japanese after starting a new game.

It says "Failed to load application data." (in Japanese) by default, but if you update it to the latest version, the game will properly display a message on how the service has been terminated since July 31, 2017:



"Notice of service termination

Thank you very much for using Mobile Suit Gundam Battle Operation.

With Monday, July 31, 2017 (Monday), we will close the service of "Mobile Suit Gundam Battle Operation".
Last but not least, I would like to thank you for your patronage.

July 31, 2017 (Monday) "Mobile Suit Gundam Battle Operation" admin team

© Sogo · Sunrise" (via Google Translate)

TLDR: Just another case of an abandoned online game littering the compatibility database.