EntityQ5552828· pop 14· linked from 141 articlesGreen Hill ZoneSign in to savefirst level in Sonic the HedgehogConnectionsSonic the HedgehogEntitylevelEntitySonic TeamEntityJapaneseEntityCaliforniaEntityYouTubeConceptMontanaEntitytennisEntityQ8093EntityPDFEntityMarioEntityInternet ArchiveEntitypop artEntitySuper Mario Bros.EntityQ122741CompanyAngry BirdsEntitySonic the HedgehogEntityThe Legend of ZeldaEntitySonic the HedgehogEntitySega GenesisEntityCategories1991 in video gamingFictional story elements introduced in 1991Sega GenesisSonic the HedgehogSpoken articlesVideo game levelsVideo game locations