Official Game from bandai namco!
Game is fully voice over in japanese language (original cast)
Jetpacks, beam, rifle, cannon, sword it has everything from close combat to long range weapons
features campaign story & PvP arena (1Vs1, 2Vs2, battle online)
*Currently doesn’t have English version
Size is about 2GB
It doesn’t requires any account or stuff to login
https://play.google.com/store/apps/details?id=com.bandainamcoent.gundambattle.tw (use taiwan vpn & download directly from playstore) or
(change appstore country to taiwan then go through above link & download)
Hope you find the useful!