Sonic the Hedgehog Pocket Adventure Prototypes. Sonic Generations. Sonic the Hedgehog Mobile. Sonic and the Black Knight: Knight in Training. Sonic R Preview. Sonic the Hedgehog Spinball Prototype. Sonic Spinball. Sonic Spinball Prototype. Sonic at the Olympic Games. Robotnik's Mean Bean Machine Prototype. Blimp Strike : Mobo hops in their blimp and attacks nearby racers with bombs.
DS Changes: Robo joins Mobo in the blimp. Amigo from Samba de Amigo with Sun Buggy. Samba de Party : Amigo speeds up and hypnotizes the other racers with his rhythm. Then once he passes by an opponent, they follow him in a conga line and start dancing.
DS Changes: Amigo only slows the other racers. Fantasy Thorn : Lets the player choose from three items to use on opponents a rocket booster, one big missile, and four smaller missiles.
The player highlights an option using the steering controls, and the highlighted option is selected when a few seconds have elapsed. Don't Stop - Super Fantasy Zone. Egg Rodeo : After letting out a "cock-a-doodle-doo", Billy hops onto a giant egg like a circus ball and runs on it to squash his opponents. Tag Jamming : Starts skating, and can also spray paint on nearby racers to obstruct their view.
Ryo Hazuki from Shenmue with Naoyuki's Motorcycle. Working Man : Gets in his signature forklift and can toss opponents. Working Man : Shakes his fist, steps on the gas, and can toss opponents. Peticopter : Hops into a mini-helicopter, allowing him to shoot damaging projectiles at opponents. Ulala from Space Channel 5 with Astro Glider. Tension Blast : Ulala stands on top of her hover craft and dances as Morolians circle the other racers, causing them to dance.
Joe from Crazy Taxi with Crazy Taxi. DS Changes: No passenger hops in; otherwise the same. Cat-Walker : Normal ChuChus circle the other racers as a giant Kapu-Kapu appears and stomps down the track with Chuih riding on its head. Run-a-Way Love : Zobio drinks a radioactive potion, grows big, and runs around with Zobiko riding his back as Zobio smashes anybody in its path. They then speed up and run over the other racers. DS Changes: AiAi is solo; the other monkeys don't join in.
DS Changes: Jacky attacks by spinning the car when the item button is pressed. Party Power : Four Avatar friends pick up the player's car and start running while knocking out anything in their path. Parade Power : Four of the player's Miis pick up your car and start running, knocking out anybody in the way. Sonic Sonic is the world's fastest hedgehog, capable of running at the speed of sound mph.
Sonic is not an expert swimmer, but is fearless — even of Dr. Alongside his best friend Tails, Sonic runs around the world stopping Dr. Eggman's schemes. He drives the Speed Star — a car built by his friend Tails — it helps to make a fair race as no one can beat Sonic on foot.
Tails Tails is a two-tailed yellow fox, equally at home, on the ground, in the air, or in the water. He's super-smart and likes nothing better than inventing and fixing planes, cars, and all things mechanical. He's an honorable and courageous friend in the face of danger. He teams up with his best friend Sonic — and their other friends — to help save the creatures of the South Island from Dr.
Tails built his own plane, the Tornado Racer, from parts found after an attempted invasion by Dr Eggman. Its short-winged design allows it to execute sharper turns than ordinary airplanes. She is always running after Sonic, and in love with love. She's all about competition and style which is why her car, the Pink Cabriolet, is kitted out for speed and to look good.
It is also designed to stay steady enough when she unleashes her lethal Piko-Piko Hammer. Eggman Sonic's arch-enemy, and a genius to boot, Dr. Eggman loves whipping up crazy robotic armies that look like him to help with his dastardly schemes. His IQ level is In his evil genius mind he dreams of creating a place called Eggmanland — and he will destroy anyone who tries to stop him.
Eggman's all-terrain vehicle, the Egg Monster, has large wheels and an extra high riding seat so he can look down on everyone he overtakes and enjoy it! Shadow Shadow is an artificial life form, created by Dr.
Eggman's grandfather. His initial hatred of Sonic has now developed into a friendly rivalry. With Chaos Emeralds he can power up his Chaos Control and warp time and space. If he has all seven emeralds he can transform into Super Shadow — which, like Sonic, makes him invulnerable and gives him run-flight.
Shadow uses a modified G. In his monkey ball AiAi is fast, nimble and not too light. In his spare time, he likes to eat bananas, spend time with his family, play games and live easy.
AiAi and friends have tried to design the fastest banana ever: his car — the Blazing Banana. Billy Hatcher Billy Hatcher's an inquisitive boy from the human world. He eliminates everybody else in the race with his secret move of egg capture. To activate simply be in first and press X or A depending on system repeatedly. After saving a helpless chick from an attack by crows, Billy and his friends are transported to Morning Land by the Chicken King. With the courage bestowed upon him by the chicken elders, he dons the legendary rooster suit and embarks on a grand adventure to save Morning Land from eternal night.
Billy must stop Dark Raven or the darkness will spread to the human world. Billy's Racing Rooster car is highly maneuverable, so watch out — he may wear a rooster suit, but nobody calls this boy chicken! Amigo Amigo is one maraca-wielding, party-loving monkey! Along with his sister Amiga, and their friends Linda, Bingo, Bongo, Rio, Chumba and Wamba, Amigo's life is a non-stop carnival and the more skillfully he shakes his maracas, the hotter the party gets!
Amigo's car is built into a giant maraca. Keep an eye on this guy, he's likely to break out the samba at any point! Knuckles Knuckles is the guardian of the Master Emerald, which gives Angel Island its power to float in the sky. He is the last of the Echidnas of the island's native people. His name comes from his powerful fists, which allow him to punch through rock and make him a skilled burrower and climber. He can also use his dreadlocks to glide for short distances. He drives a tough little all-terrain vehicle called the Land Breaker.
Big Big is a large, purple, long-eared cat. He's laid-back, easy-going, and has a gentle nature despite his prodigious strength. He loves to fish and is never without his trusty rod. He lives in the jungle near the Mystic Ruins with his best friend, Froggy, a small, green frog with a pointed tail. Big's adventures often involve him trying to find Froggy, who has a tendency to get himself lost or swallow a Chaos Emerald.
Big's motorbike is called the Green Hopper. Zobio and Zobiko He, Zobio, was a prison guard. She, Zobiko, was an inmate thrown into jail by a mad doctor. Zobio decided to break out Zobiko, so that they could start a new life together.
But will either of them ever really be free? They race in their Hotrod of Horror, a turbo-charged, armor-plated monstrosity. This attracts the attention of Police Captain Onishima and his S. Beat drives a heavily customized street racer, with all the extras — including an extra bass system and neon under-lights!
He was once seriously injured in a racing accident and took two years to recover from his injuries. During that time he discovered a mystery group was behind his crash and it was no accident. He believes this same group is responsible for the disappearance of his sister, Sarah, but will he ever learn the truth? Akira was winner of the second World Fighting Tournament.
He strives for perfection and trains relentlessly. He is currently the Master at Yuki Budokan. Jacky and Akira join forces to create a formidable racing team, competing in Jacky's muscle car Red Lightning.
Ulala Ulala was orphaned at an early age in a spaceship accident in which she was the sole survivor. She was rescued from the void of outer space by a Space Channel 5 reporter and ten years later, she's now their top reporter. She shot to fame when she confronted the Morolians, who imprisoned humans and forced them to dance against their will. She is mainly confronted by her frendly rival Pudding. A "Mercury GP" banner can be found hidden on the game's website, but no downloads for it are known to exist.
In the Japanese version of the game, files containing sound effects and voices. Despite never going to Casinopolis, these extra files allow Amy, Big and Gamma to use their correct sounds for actions such as jumping or attacking. In other versions these files were removed, so the three use Sonic and Tails' sounds and voices instead. None of these files contain idle lines, as those weren't added until later versions.
While some cards NiGHTS and the Nightopian look similar to the used ones, these versions have stars in the background that aren't present on the regular cards. When the player gets to the end of Sky Chase 2, they must defeat the Egg Carrier's cannon to complete the stage. However, if the player waits for roughly a minute and a half the cannon will suddenly start to take damage and drain its own health bar, eventually defeating itself without the player needing to do anything.
However, the flight path around this area never goes inside the tower. This is a leftover from the earlier "spiral" version of the stage seen on the right , when the flight path did go through the tower. Right at the start of "Dilapidated Way" e. Although it's clearly visible, it cannot be accessed due to an invisible wall.
It goes on for some time, twisting and turning, but abruptly hits a dead end. From the objects present in the path it was likely intended to have been used as a starting point for Tails.
Part of Big's path in the small pool in Act 2. A layer of ice prevents Sonic from going here normally. There are a lot of inaccessible areas around the stage that are either permanently blocked off or impossible to reach:.
An inaccessible area behind the start of the stage that was originally going to be used for the starting point. A piece of geometry out-of-bounds in Act 2 at 0,0,0. It's impossible to see due to the background and the fog. Above the first Beat room in Act 3 are two small holes that lead to this area. It's nearly impossible to access and completely empty though. A blocked off area at the end of the stage. It was originally intended for Act 4's transition point and even has the cameras for doing so nearby.
This stage has an unused 4th Act complete with its own starting coordinates, objects and textures. However, it has no geometry and the object placement SETS. BIN , with the only difference being in object IDs. The Act itself is a leftover from an earlier version of the stage where the map seen in the cutscene before fighting the Egg Viper was part of Final Egg rather than the Egg Viper's map.
The second inaccessible area was originally part of the Act transition to this area - in fact, the camera for doing so is still used if the player walks up to the blocked entrance in the final game.
There are two forked sections in the rightmost path of Sand Hill that have one path blocked off by large objects. This is due to reusing the same geometry for both forks. Tails has a small number of actions in the game that he never uses as either the player character or while following Sonic:.
A number of animations in the game go unused. Some are never used because they're never needed, but others aren't used entirely. There's also quite a few "empty" slots - which just point to the character's standing animation. The Dr. Eggman and Tikal objects used in cutscenes are actually programmed the same way as the playable characters, and can be played via hacking. They both have only the most basic movement functions, walking and jumping. They can't hurt or get hurt by enemies and obstacles, and cannot run on wind paths and some loops.
Pressing the Action button activates free movement mode. Dying before hitting a checkpoint or changing segments in an Action Stage causes the game to crash, as they do not have starting position lists.
By pressing Z , you can make the player turn their head towards the camera. This can be done with anyone aside from Gamma and Super Sonic though Big will only move his pupils. It works on the character select menu as well, with Sonic responding to controller 1 and Tails responding to controller 2. While this button was not standard on the official Dreamcast controller, some alternate controllers such as Sega's Dreamcast Arcade Stick supported it, and it can be mapped and used in emulators.
By having A held after a jump or pressing B or X as Sonic or Tails while riding a snowboard you can make them duck.
It has no effect on either character and they'll return to normal as soon as they use another animation such as turning or falling. The animation is part of an earlier set of snowboard controls used in the AutoDemo where Sonic and Tails visibly ducked down before jumping similar to realistic snowboards.
It was removed from the final version's snowboarding likely because it caused uncomfortable delays that could cause the player to miss trick ramps. Holding down on the analog stick as Sonic will cause him to stand sideways on the board. This seems to be part of a broken braking mechanic, as not only does Sonic attempt to slow down beforehand but neither of these animations appear as Tails - the board just appears to move on its own while playing as him.
Tikal's father is always seen with closed eyes in-game, but his model does have them - they're just covered up every time he appears.
Sonic Adventure uses a palette lighting engine that reads data from a group of files with the prefix "PL". Several of these files are never used at all. When the object O MUD is present this is gradually applied, aiming to make the player look dirtier as they move through the stage. However, since O MUD itself is unused the same goes for the palette associated with it.
They may have been related to a scrapped lightning effect that can be seen in pre-release footage of the Egg Carrier's transformation. They look similar to the used ones, but have darker shading on characters and objects. The Chao Gardens in Station Square and the Egg Carrier never appear at evening or night, so they never use these extra files. Interestingly, the Mystic Ruins garden does appear at evening and night, but doesn't use the files either - the garden uses the daytime lighting at all times.
Within all versions of Sonic Adventure remain the menus from the Tokyo Game Show version of the game. The ID for the current menu can be found at the following address:.
NOTE: For emulators the address needs to be adjusted. If using Demul, subtract Interestingly the address that controls the TGS Menu ID has a value 13 that sends the player to the Chao Garden, but there's no known way of doing this normally.
The title screen is a simple static image, which for some reason is flipped horizontally. After 10 frames a third of a second in the Dreamcast version, a sixth of a second in the PC version it plays Tikal's theme music. After frames 5 seconds in Dreamcast, 2. Pressing the X and Y buttons together in the Dreamcast version brings you to the level select described under the "Developer Tools" section , but in the PC version it causes the game to abruptly exit.
Pressing the Start button brings you to the character select screen described below. Note that if the voice file is swapped with the AutoDemo's, instead the voice that plays will be Knuckles saying a line that translates to "How dare you. The character select screen is also rather simple, pressing Left, Right, L, or R will switch the screen between six static images.
After frames 20 seconds on Dreamcast, 10 seconds on PC the game will return to the title screen, although the character select music will continue playing. Pressing the Start button will display the two "How To Play" images and then begin the character's story from the beginning.
Holding A or B sends the player to their selected character's demo stage instead of their story, with the B button version enabling controls.
How to Play pictures from the TGS version of the game. English versions of these files can be found in the AutoDemo. In the TGS version of the game, Knuckles was given a gliding tutorial before playing his stage. These menus are in the same section of code as the TGS menus, but there does not seem to be any way to activate them other than hacking.
Pressing the L and R buttons switches between the three menus and Up and Down changes the current selection within the menu. Left and Right can be held to scroll the list faster. Pressing the Start button begins gameplay in the specified stage with the specified character. Since none of the proper story events have happened, picking any Adventure Field level will likely leave you stuck with no option but to return to the title screen, and due to an oversight, the game puts you in "Adventure" mode in the Action Stages without setting an Adventure Field to return to, so selecting the "Quit" option from the pause menu simply puts you in Hedgehog Hammer level 0.
In all versions of the game, a level select menu exists. To access it, change the value of the following address to 02 :. X and B will change your character. The stage list is not visible in the versions of the game with an animated title screen US 1.
A debug display that shows active collision near the player can be found by changing the value of following address to 0 :. A debug feature with 3 displays showing various in-game information. Changing the value of the following address to 1 , 2 or 3 switches between displays.
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