I am playing Siralim 3 on:
Device: Note 9, not rooted.
Game Version: 1.0.11
Controller: Moga Pro 2
Anytime a button is pressed on the controller it is registered as multiple inputs by S3. I have used this controller to play quite a few other games including some emulators with no issue. Pressing B opens and closes the menu rapidly, A does the same thing for selecting something. Navigating the menus with it is a hassle as moving up and down skips 3+ lines at a time.
Now, I love the game and it’s great without the controller support, but it would be nice to be able to use it. Still an amazing game though. The difficulty is just right.