when is the release date of the sequel of the series in which the title character is the sonic the hedgehog?
Sonic &amp; Knuckles: Sonic & Knuckles is a platform game developed by Sonic Team and published by Sega for the Sega Genesis. Sonic &amp; Knuckles:  Released on October 18, 1994, it is an installment in the main "Sonic the Hedgehog" series and a direct sequel to "Sonic the Hedgehog 3", which released earlier that year.
i don't know