Yes, if you have an official version or a different mod installed, you will likely need to uninstall it before installing Riicky’s version to avoid signature conflicts.
Naruto Senki is a fan-made 2D arcade-style fighting game for Android, originally developed by Zakume Final Mod By Riicky V1.17 Naruto Senki Final Mod By Riicky V1.17 Apk - Adadroid Fix