This article pertains to the
beta elements of .
E3 promotional teaser
The short promotional teaser of
Sonic Advance was presented on E3 in 2001, where it was announced that a  Sonic game was under development for the Nintendo platform. The teaser showcased a short clip of Sonic running through an early version of the Neo Green Hill Zone.
Early HUD icons
A comparison of the early (left) and final (right) HUD sprites.
Early screenshots featured on many different websites and in various magazines share a common element: the early HUD in the upper left corner of the screen showcases a different
Ring icon compared to the one in the final game. Following image gallery shows these different HUD sprites without any notable differences:
Early debug coordinates
Some screenshots show
hexadecimal codes, which may be present in the game's debug coordinates, much like in early main titles for the Sega Genesis. More screenshots with debug coordinates include:
Neo Green Hill Zone
Neo Green Hill Zone
's background has a different formation and the sea is different. The sign and lightpost seen on the hill are not featured in the
Clouds are still in a different formation.
Casino Paradise Zone
The castle is a lot duller than in the final game, and has a different shape. In the released game it is much more colorful.
The castle is in the center of the screenshot. In the final game, it always remains in the top left.
Egg Rocket Zone
The area is different, having more rounded tubes with less detail, but the background has more detail.
The screenshot on the right presents a different-looking
Special Stage, with the tubular tunnel having basic tiles as opposed to the detailed ones used in the final game. All the sprites for the Rings and Bombs are also completely different.
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Sonic | Tails | Knuckles | Amy | Eggman | Chao | Gold Chao | Animals ( Deer, Elephant, Kangaroo, Koala, Lion, Mole, Parrot, Penguin, Rabbit, Seal, Sea Otter, Skunk, Swallow) | Flicky | Ricky | Pocky | Picky
Zones Neo Green Hill Zone | Secret Base Zone | Casino Paradise Zone | Ice Mountain Zone | Angel Island Zone | Egg Rocket Zone | Cosmic Angel Zone | X-Zone | The Moon Zone | Special Stage
Egg Hammer Tank | Egg Press | Egg Ball | Egg Spider | Mecha Knuckles | Egg Snake | Egg Mobile-H | Egg Mobile-D | EGG X | Super Egg Robot
Buzzer | Drisame | GamiGami | Hanabii | Kero-Kero | Kiki | Kura | Leon | Mirror | Mogu | Oct | Pen | Pierrot | Rhinotank | Senbon | Slot | Tentou | Wamu | Yukimaru
Climb | Glide | Hammer Attack | Hammer Jump | Hammer Whirl | Jump Dash | Giant Steps | Insta-Shield | Jump Attack | Propeller Flying | Skid Attack | Spin Attack | Spin Dash | Super Sonic Boost | Somersault | Tail Swipe
Balloon | Capsule | Conveyor Belt | Dash Panel | Fan | Flipper | Goal Plate | Grind Rail | Item Box ( Blind, Brake, Confusion, Extra Life, Invincibility, Magnetic Barrier, Power Sneakers, Shield, Super Ring, Transparency, Warp) | Pole | Ring | Special Spring | Spikes | Spring | Star Post
Barrel | Bumper wall | Chao Search | Continue | High-speed warp tube | Moon | Pulley | Shuttle loop | Time Attack | Tiny Chao Garden | Time Over | Tornado | Trick Point | Winding Tunnel | Zip Line