Hey guys I'm kinda a noob to the flash cart thing I have a r4 dual core say 3ds upgrade and has 2016 on the top it's a white card. Any ways i know I can't play gba and 3ds roms i have tried i have a good nes emulator on it and gbc but would like a Sega master system emulator that runs good. Do you guys know of any good emulators i can get that will run good on my ds? Thank you for your time.