Taking the player into an Act.
Act Rings  are gimmicks that appear in  . They are a type of Sonic Advance 3 Giant Rings which can take the player into Acts.
Act Rings are slightly smaller than
Giant Rings. They float in midair and have a black center with a number from one to three inside them.
Three Acts Rings can be found inside each Zone Map in
. Upon being touched, the playable characters will disappear briefly and the player will begin the Act of that Sonic Advance 3 Zone corresponding to the number in the Act Ring. Upon completing an Act, a little golden crown will appear above its Act Ring. Chaos Angel's Zone Map also features a large metallic Act Ring with a red Eggman Empire decal on it that leads to Altar Emerald.
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Mid-Air Trick Actions Big Air ( Happy Spring, Hop Jump, Petit Step) | Long Wind Jump ( Humming Top, Sweet Roll, Window Jump) | Stop 'n' Slam ( Bound Attack, Spinning Hammer Attack, Propeller Descent, Hip Drop)
Gimmicks and obstacles
Balloon | Bungee Rope | Checkpoint | Dash Panel | Flywheel | Grind Rail | High-speed warp tube | Iron ball | Jump Panel | Minecart | Platform-raising Wheel | Pole | Pulley | Propeller Spring | Seesaw | Snowblower | Special Spring] | Spin ring | Switch
Act Ring | Box ( 1-Up, 5 Ring Bonus, 10 Ring Bonus, Confusion, Invincibility, Minus Ring, Maximum Speed, Mosaic, Random Ring Bonus, Ring Magnet, Shield, Slow, Swap, Transparency) | Capsule | Chaos Emerald' | Factory Ring | Goal Medal | Ring | Special Key
English voice actors
Ryan Drummond ( | Sonic) Deem Bristow ( | Eggman) William Corkery ( | Tails) Scott Dreier ( | Knuckles) Jon St. John (Announcer) | Jennifer Douillard ( | Amy) Sarah Wulfeck (
Japanese voice actors
Jun'ichi Kanemaru ( | Sonic the Hedgehog) Chikao Ōtsuka ( | Eggman) Ryō Hirohashi ( | Tails) Nobutoshi Canna ( | Knuckles) Taeko Kawata ( | Amy) Sayaka Aoki (
Angel Island | Chao Playground | Corkscrew loop | Fly Type | Freeze | Mini-Games | Power Type | Shuttle loop | Sonic Factory | Speed Type | Time Attack | Tornado 2