Photo: Sintegrity, CC BY-SA 4.0, Wikimedia Commons
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Master System II (Sonic the Hedgehog built in)
Sonic the Hedgehog built in · Sega · 1992
Released1992
Colorblack
RegionEU
Rarityno data
Why
There’s no units produced with a source and not enough listings. We don’t make things up.How to tell them apart
Small rounded body, large pause button, sliding cartridge cover, no card slot, no reset, no power LED.
Details from sources
Sonic replaced Alex Kidd as the built-in game from about 1991-1992 (Sega Retro); ja.wikipedia BIOS table labels the Sonic MS II BIOS as 1991 USA - North American release not verified.
Data source: segaretro.org
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