Japanese Megadrive 1 VA1, no region mods.
No intro roms.
Vanilla (unmodified) V2.00 BIOS files.
Sandisk Ultra 128GB card.
Krikzz Joyzz wireless 6 button pad (which works perfectly).
AH3 Thunderstrike (USA), buttons B and C (weapon select and throttle) don't do anything.
Only button A (fire) works.