Yes it working fine for me to Bypass Security Alert Code 2.
The King of Fighters (KOF) AllStar by Netmarble working fine using ANRC.v0.0.77 Preview (Xposed Module).
1. Open Xposed app. Install ANRC module, activate it and reboot your phone.
2. Open ANRC app -> app list -> add Netmarble game (ex: KOF AllStar).
3. Select game at app list to edit, Action menu choose hide root. And Other menu choose -> Dont kill me (experiment).
4. Save, but dont run to play the games yet.
5. Using a file manager app with root (Root Explorer), in the /data/data folder,
simply rename the folder called de.robv.android.xposed.installer
( i rename it to de.robv.android.xposed.installer2 )
6. Then launch to run the game, KOF AllStar. (Works fine for me).
You do not have to reboot! Just rename the folder.
When you are done with game and exit it, dont forget to rename back the xposed installer folder in /data/data back to de.robv.android.xposed.installer.
It really working fine on my device Xiaomi Redmi 3 Pro (Ido) with Root Non UBL running on stock firmware Lollipop 5.1.1 MIUI 220.127.116.11.