After Sega left the console market, they launched sonic cafe, A series of mobile games, mostly sports games, But one of the games is lost, Sonic Kart 3DX, It was like sonic drift, the first sonic racing game, Only a few screenshots were found and no gameplay footage at all, Sonic Kart 3DX was a racing game on the DoCoMo flip-phone, Sonic Kart 3DX was 3d just like sonic r, But Sonic Kart 3DX is nowhere to be found on eBay, But the flip-phone can be found on eBay, I hope the game can be found someday.
