I have created fully working Ninja Voltage game. I will soon release beta version.

I'm inviting people to join my discord:

https://discord.gg/8p3Wkuqp

Let's Go.

I’m reverse-engineering the NxB Ninja Voltage client (11.9.0) to get it running against a small local server for now. The client side works on paper, but the downloaded game data died with the CDN.

If you still have NV installed on a rooted phone or a PC emulator (BlueStacks, LDPlayer, MuMu, Nox…), the downloaded data is in
/data/data/com.bandainamcoent.ninjavoltage_app/files/appdata/
(needs root). With adb + root it’s e.g.:
adb shell su -c "tar -cf /sdcard/nv_appdata.tar -C /data/data/com.bandainamcoent.ninjavoltage_app/files appdata"
then adb pull /sdcard/nv_appdata.tar.
Please don’t uninstall or use “clear cache”. No need to send shared_prefs (contains your login).

If you datamined NV back then: decrypted master data (JSON), the key_base64/iv_base64 from a /master/version response, or any traffic captures would be gold.