A: That's a different game (strategy + action). You can emulate that via PPSSPP (PSP emulator) on Android much easier than PS2. It runs perfectly even on low-end phones.

Samurai Warriors 2: Empires - Strategy Guide - PlayStation 2

Emulating a dual-analog stick setup on a glass screen is notoriously difficult. Virtual joysticks lack tactile feedback, making it hard to execute the specific directional inputs required for advanced combos in Samurai Warriors 2 . During massive battles where hundreds of character models are on screen, a player's thumbs often obscure crucial action, leading to frustration.