Sonic Jam
"Sonic Jam" is a compilation which contains the four main "Sonic the Hedgehog" games released on the Sega Genesis: "Sonic the Hedgehog", "Sonic the Hedgehog 2", "Sonic the Hedgehog 3", and "Sonic & Knuckles". Unlike future "Sonic" collections, "Sonic Jam" does not use a Genesis emulator; the games are proper ports, and all are nearly identical to the original Sega Genesis releases, with the exception of minor bug fixes. "Sonic Jam" emulates "Sonic & Knuckles" "lock-on technology"—a special feature that allows the player to merge elements of "Sonic & Knuckles" into previous games, resulting in changes to the level design as well as the choice to play as Knuckles the Echidna in "Sonic the Hedgehog 2" and Tails in "Sonic & Knuckles".
ToeJam &amp; Earl
"ToeJam & Earl" received positive reviews, which Bill Paris of UGO described as "almost unanimous critical acclaim". However, Sega deemed it a commercial failure due to low initial sales. The game built a cult following through word of mouth, and it was further aided by the Sega Genesis's Christmas 1991 sales spike, caused by the release of "Sonic the Hedgehog". "ToeJam & Earl" was later considered a "cult" success. According to Ken Horowitz (2016, p. 74) author of Playing the Next Level: A History of American Sega Games, "In all, the game sold 350,000 copies for Sega, a remarkable feat for such an unconventional title on a fledgling console." "Entertainment Weekly" picked the game as the #9 greatest game available in 1991, saying: "Simply hilarious, from the Warner Bros. cartoon-inspired sound effects to the rap songs players can improvise while using the control pad. "