Sonic The Hedgehog 2 is introducing the characters of Knuckles and Tails, and hopefully will set up the series' greatest villain for a third film. With a first film that met mixed fan and critical responses, it is important that the sequel hits the right notes. With the inclusion of many more characters, it is seeming likely that the films will carry over the game and comic lore — one of which is the character of Chaos and the Master Emerald.
Sonic The Hedgehog has been part of pop culture since the early 90s, having received multiple games, television shows, comic series, and now films. Beginning with solo outings, Sonic very quickly was joined by a wealth of teammates and enemies — the most popular of these was Dr. Eggman, who appears in the first film. As the games developed, Knuckles was introduced as an enemy, tricked by Dr. Eggman into fighting Sonic and protecting the Master Emerald. As the Emerald's history was explored, the character of Chaos appeared in the 1998 game Sonic Adventures. Chaos had agreed to absorb the negative energy from every Chaos Emerald and destroy the Knuckles clan.
Related: Why Knuckles Is A Villain In Sonic The Hedgehog 2
The most sinister form of Chaos, whose origin and goal is different than the Sonic Adventures game is found in the Sonic the Comic (1992-2002). This version of Chaos was a hungry water deity that craved limitless power, traveling time and space to accomplish this. He appears more like a monstrous Thanos, attempting to collect emeralds to gain universal power and his physical form of water creature is considerably different than the games' traditional echidna style. With the possible introduction of Chaos into the film series, Knuckles' desire to protect the Master Emerald
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