- Awesome Music: As usual.
- Game-Breaker: Tails, full stop. He doesn't have to collect the Chaos Emeralds, can fly and trivializes the entire game as such. He's the easy mode of this game, for a game who's already easy to begin with.
- It's Easy, So It Sucks!: Many complain about the game's rather short and simplistic level design, especially compared to the usually larger difficulty spike of the 8-bit titles.
- Most Annoying Sound: The boss music is rather shrill, bringing to mind Mega Man II's similarly squeaky soundtrack.
- Older Than They Think: This was the first game where the player was given control over Tails' ability to fly, not Sonic 3, which was released a year later.
- Porting Disaster: Downplayed. Unlike the previous two games, the Game Gear version was the original, with the Master System port having simplified graphics and music in places to accommodate the slightly less powerful console. Its gameplay translates the same, however, besides odd layout changes and slightly more resilient boss fights.
- Suspiciously Similar Song: An inversion: The Sleeping Egg Zone theme sounds very like Freaky Chakra's "Platform", which was made five years after Sonic Chaos was first released.
- That One Attack: The Laser Walker's second form does nothing but try to ram Sonic, which for some reason is instant death regardless of whether or not you have rings. The only consultation is that the Walker goes down in one hit as well, which doesn't help much seeing how quickly it moves and how you have to hit the cockpit or you'll die.
YMMV / Sonic the Hedgehog Chaos