. . "alternate version of ''Sonic the Hedgehog 2''" . . . . . . . . . . . . . . . . . . . . . . "Sonic the Hedgehog 2" . . "1992-11-21" . . "Sonic the Hedgehog 2 (8-bit)" . "the 8-bit version of ''Sonic the Hedgehog 2''" . . . "Sonic the Hedgehog 2 (8-bit video game)" . . . "version of ''Sonic 2''" . . . . . "Sonic the Hedgehog 2 (8-bit video game)" . . . . "''Sonic the Hedgehog 2'' (8-bit video game)" . . . . . . . . . . . "''Sonic the Hedgehog 2 (8-bit)''" . . . .