Dubbed "Mascot Edition", for obvious legal reasons - The Retro-Bit RetroDuo clone console may have been surpassed by Hyperkin
StarBlog: Alcahest (SFC) Review
Retro-Bit Retro Duo Twin Video Game System NES and SNES V3.0 - Black/Red
2 game cartridge slots. Compatible with Original NES and SNES games S-Video Connection Capability Includes 2 wired controllers. Includes AV/S video
Retro-Bit Retro Duo 2 in 1 Console System - for Original NES/SNES, & Super Nintendo Games - Silver/Black
Retro Mario SRB2 Message Board
Keep seeing supaboys on here but how about my retro duo portable. Plays snes, nes, and genesis, and has 8 hours of playtime. : r/gaming
MEGATech Reviews - RetroDuo Portable Version 2.0 Core Edition NES/SNES Handheld - MEGATechNews
Retro-Bit Is Releasing A Super Mario Edition Of Its RetroDuo Console
Portable SNES (Retro Duo Portable) Review thing - General Gaming - Off Topic - Minecraft Forum - Minecraft Forum
Super Mario World - Super Nintendo, Super Nintendo
TimeWarpGamer
Retro-Bit: About Us
Retro-Bit RES Plus Review
Trade In RetroDuo Protable Handheld Console for NES and Super NES
Where can I find all original Mario games that I can play on my PC? - Quora
Retro Duo Console Review - Feature