Sonic Chrono Adventure

* Main Page
* Unused Content

***Sonic Chrono Adventure*** is the fourth and final Sonic fan game created by LakeFeperd and in the **Sonic Between the Trilogy** Series. Contrary to the typical platforming gameplay of *Before* and *After the Sequel*, *Sonic Chrono Adventure* combines platforming with a Metroidvania-style gameplay with an open-world setup, separate upgradeable abilities, and more dialogue.

Unlike LakeFeperd's previous platformers, *Sonic Chrono Adventure* does not have an original soundtrack. Songs are borrowed from several other games, including *Before* and *After the Sequel*, *Kingdom Hearts 3D: Dream Drop Distance, Super Paper Mario, Metal Gear Rising: Revengeance,* and others.

2. **Gameplay**2.1. Power-Ups2.2. Forms
3. **Zones/Maps**
4. **Remakes & Remasters**
5. **Trivia**
6. **References**

### Story

#### Main Game

Sometime after the events of *Sonic the Hedgehog 3*, Sonic takes a vacation to the region known as the South Lakes, a land forgotten by time after the fall of the magnificent Sky Empire. He explores the area, passing through a city similar in appearance to Cyan City Zone from *After the Sequel*. He finds himself in Wild Wave Zone North, when suddenly EGGATS-2013, the final boss from *After the Sequel*, enters, seeming to have sustained significant damage from its previous bout with Sonic. EGGATS suddenly opens a rift and sends Sonic through it.

Sonic awakens in an empty, snowy landscape. Shortly after examining his surroundings, he discovers a voice coming from the top of his head. The voice introduces itself as Rodolia, a ladybug who was traveling westward towards West City, until she got caught up in the rift with Sonic. The duo then proceeds towards the west, where he encounters a large brick facility. Sonic enters the building, exploring its interior. However, he winds up in a room with no exit, one side being sectioned off from the rest of the building by a set of iron bars. After a period of being seemingly stuck, a green hedgehog approaches from the other side of the bars. He asks how Sonic managed to get himself stuck in the room, saying he will find a way to get him out. Rodolia inquires Gerem about their location. Gerem explains that they are currently inside a power plant used recently to build the Sky Empire. From this information, Rodolia begins to believe she and Sonic had been sent to the past by EGGATS, as the power plant should have been destroyed one hundred years ago. An off-screen voice calls out to the green hedgehog, revealed to be named Gerem. Gerem promises he will return to assist Sonic. Shortly after he exits, EGGATS tears open another rift behind Sonic.

Sonic and Rodolia find themselves in a different location once again. Rodolia recognizes the surrounding brick ruins as the remnants of the old power plant, deducing they are now back in the present, as well as being near West City. Upon arriving in the city, Rodolia notices a large metal structure that was not present before. Sonic climbs the structure and discovers Eggman had set up a base at its top. Eggman traps Sonic in a small container and proceeds to describe his plan. He had noticed that during its time in the Special Zone, EGGATS had gained the ability to travel through time. He wishes to harness these powers to travel back in time to before Sonic existed and take over the world there. EGGATS then passes overhead, prompting Eggman to give chase. EGGATS opens another time rift, trapping Eggman inside. Sonic's containment breaks and Rodolia notices a location marked on a map on a monitor in Eggman's small base. She suggests they head to that location.

The location marked on Eggman's map turns out to be Old Castle, a colorful fortress in the mountains. At the top of the castle is a time rift, differing from the others in that it is open, despite EGGATS not being nearby. Sonic and Rodolia enter the portal and find themselves in New Castle, the past iteration of the fortress not yet degraded by time. The two return to the power plant they visited earlier, finding Gerem being questioned by some bird soldiers about breaking the power plant wall. An attack from Sky Empire drones then arrives and destroys the power plant. Sonic confronts a large drone, but EGGATS once again whisks Sonic to the past, along with Gerem, as he was nearby.

Once again in the present, Rodolia notices some lights coming from an island in the background. Sonic goes to investigate, ending up in Power Park. A robot named Eggmyte greets Sonic at the entrance. Sonic also finds a feather dropped by EGGATS nearby. Rodolia realizes this enables Sonic to open time portals using the feather, as well as the reason Old Castle's portal was open being due to the feathers nearby. Sonic meets Eggmyte again at the end of Power Park and finds out Eggmyte was programmed to destroy Sonic in Eggman's absence. Sonic defeats Eggmyte, traverses on some old ruins adorned with Sky Empire symbols, and finds Gerem unconscious next to a portal. Rodolia suggests they get Gerem into the portal as soon as possible in order to not have to explain that they are from the future.

In the past, Gerem awakens and suggests they meet at an old station to the north, as the power plant is now destroyed. At the station, Rodolia questions why the Sky Empire attacked Gerem and his companions. Gerem explains that the Sky Empire is being ruled with an iron fist by Dr. Ucano, and that he and his team were part of a resistance against his dictatorship. A captain bird sends Sonic and Gerem on a mission to infiltrate the Sky Empire and find out why the Sky Empire would launch an attack against them.

Arriving in Sky Speedway, the outskirts of the Sky Empire, Gerem states that he knows the Sky Empire princess and is going to question her, ordering Sonic to wait while he meets with her. Sonic, ignoring this command, sneaks into the Sky Empire through the underground infrastructure of the main island. Inside, he re-encounters the previous large drone from earlier, named Grandpé, and defeats it. Sonic then exits the underground and enters the main Sky Empire city. Rodolia assumes Gerem would be in the main tower at the center of the city, and Sonic ascends it. During his journey upward, he experiences odd hallucinations. At the top of the tower, Rodolia questions Gerem, who is playing Kirby with the princess, about the visions from the tower. He explains these were caused by the island's strong magnetic field, which can mess with the head. The princess asks Gerem if his friends made sure not to trip the alarm, which had been unknowingly set off upon entry into the princess's room, and Sky Empire drones enter the room and arrest Sonic and Gerem.

The two hedgehogs are then taken to court, where their crimes against the Sky Empire would be presented to the council. The judge asks for a final statement from Dr. Ucano. The curtains behind the judge rise, and Dr. Eggman is there on the platform wearing Sky Empire regalia. He sentences Sonic and Gerem to 5 years in the Sky Empire's prison. While in their cell, Gerem tells Rodolia about how the event was normal for the Sky Empire's justice system since Dr. Ucano came into power. Sonic and Gerem then break out of their cell and escape the prison. A Sky Empire drone pursues Sonic as he leaves the Sky Empire atop a flying bus. As Sonic fights the drone, EGGATS returns and sends Sonic to the present.

Sonic awakens at the ground level in an old mine designed to extract the magnetic rocks from below the ground to fuel the Sky Empire's magnetic fluid which keeps the city above the ground. After exiting the mine, some Sky Empire ruins fall and land near Sonic, nearly hitting him. Sonic then climbs up to the Sky Empire ruins to investigate the falling debris. At the top are three badniks discussing their ability to think freely: Coconuts, Motobug, and Jetdog. Coconuts gets frustrated with the conversation and leaves, and Motobug and Jetdog decide to go to Old Castle. Sonic pursues Motobug and Jetdog, defeats them, and lands in Old Castle. Sonic enters the portal there and returns to the past. He ventures into the interior of the castle, falls down a large pit, and gets consumed by a Polem, one of the black goo-like creatures present throughout the past's areas.

Sonic wakes up to find out he himself has transformed into a Polem, and is now inside Polem City, a vast underground cavern lined with honeycomb. The Polem residing within are friendly to Sonic, as he seems to be one of their kind. Further within the city, he meets Medela, a Polem scientist researching methods of controlling the Polem instinct to eat any animal they see, as the city's population is declining due to Polem leaving the city and going primal. She has developed a medicine to suppress these urges and proposes her idea to the Queen, but the Queen rejects the idea, saying she is fine the way she is now. Medela asks Sonic to bring the Queen back to her, but the Queen is annoyed by Sonic's persistence. She shoots him with a spike, destroying his Polem form. Seeing Sonic is not a Polem, the Queen attacks Sonic. Sonic defeats the Queen and ascends out of Polem City.

Still underground but above Polem City, Sonic finds a figure in a cloak murmuring to himself. The figure notices Sonic and reveals himself to be the actual Dr. Ucano. Rodolia tells Ucano about Eggman, but Ucano is already aware of Eggman using his identity. Ucano explains that he was the former Director of Sciences for the Sky Empire, but was forced out by Eggman, who then took over the Empire using his status. A sound from the surface alerts Ucano, who sends Sonic up to investigate.

Waiting for Sonic on the surface in New Castle is EGGATS, now even more damaged than their first encounter. As Sonic is fighting EGGATS, a bruised and bloodied Eggman arrives in a beat-up Eggmobile. Sonic then defeats EGGATS, Eggman curses Sonic, saying he had just fixed EGGATS, but is sucked into a portal left behind by EGGATS's destruction.

Sonic returns to the northern station where Gerem's team had set up camp. Some black fluid falls near the base, which Gerem points out is the magnetic fluid which keeps the Sky Empire aloft. They decide to go to the Sky Empire again to investigate. Once Sonic arrives, the Sky Empire has a defensive shield activated and its residents are being evacuated. Within the city, Sonic finds Eggman in front of a computer. Eggman proceeds to explain how he ended up as the ruler of the Sky Empire.

#### Eggman's Backstory

Eggman's story begins in West City where he devised his plan to capture EGGATS. Once he got sent 100 years to the past, he managed to recapture EGGATS and repair it. EGGATS was then able to travel freely between time periods, encountering Sonic several times. After Sonic destroyed EGGATS in New Castle, the residual portal sent him back another year. He traveled all the way to the Sky Empire, where he plotted to take it over for its plentiful resources. He noticed Dr. Ucano looked similar to him and was a scientist as well, and planned to remove him and use his position and identity to gain power. He succeeded, and shortly after, the Emperor passed away. Since the princess was too young to rule, Eggman forged a hierarchy listing saying that the Director of Sciences was next in line to be Emperor. From there, Eggman used his position of power to create an army of drones and experiment with Ucano's magnetic fluid, without Sonic interfering.

#### Finale

Eggman then fuses into a black, liquid mass and quickly envelops the Sky Empire as Sonic escapes back to Sky Speedway. Dr. Ucano teleports to Sonic with Gerem, telling him that he must shut down the three Cores surrounding the Sky Empire in order to weaken Eggman. He also hints at an ability Sonic will discover, similar to the effects of the Chaos Emeralds. The ability turns Sonic into a dark color and enables him to fire lasers and create a temporary shield. Sonic disables the cores, then re-enters the main city to find Eggman. At the top of the dome, Sonic fights the black fluid Eggman mass and defeats it. Immediately after, a black and red lookalike to Metal Sonic (known by the community as Dark Metal Sonic) fights Sonic. Upon taking the first hit, Sonic regains his Dark ability, fights, and defeats Dark Metal Sonic. Its defeat removes the black fluid from the Sky Empire and transports Sonic back to the present. Dr. Ucano and Gerem were able to save themselves, as well as evacuate many citizens of the Sky Empire. The destruction of Eggman's vile creation and Dark Metal Sonic destroyed all time portals created by EGGATS.

### Gameplay

*Sonic Chrono Adventure* follows the gameplay established in *Sonic Before the Sequel Aftermath*, being a metroidvania-style game with platforming elements, as such there are areas the player can't access until they've unlocked an ability or form needed to progress. The player will find these powers as the game progresses. These powers can be leveled up by finding experience around the map, with each ability having 3 levels each level granting the player access to a new ability.

Also returning are the Bubble, Fire, and Spike Shields though they can't be found in levels, instead, they must be purchased from Portable Monitor Stores these stores only accept Silver Rings as currency and as such the player must find them in secret areas around the map the player can hold 999 Silver Rings and do re-spawn.

Also present, though not plot relevant are the Chaos Emeralds which can be found in various locations in the game, some of which are held by bosses, while others are out in the open like in *Sonic the Hedgehog (8-bit)* and *Sonic the Hedgehog 2 (8-bit)*. The player will need to go out of their way to find them and once all 7 are collected as is tradition, the player is granted the ability to transform into Super Sonic.

#### Power-Ups

**Level 1:** Can be used to cut down barriers, and takes down armored Badniks in less hits.
**Level 2:** When leveled up to this level Sonic can send a wave of energy out from the tip of the sword. This energy can damage enemies from a distance.
**Level 1:** Can be charged to launch Sonic in any direction.
**Level 2:** Stores the charge allowing the player to save it in a pinch**.**
**Level 1:** Gives Sonic the boost from *Sonic Rush*, *Sonic Generations*, and *Sonic Unleashed*.
Surrounds Sonic in fire and gives him a double jump can be mixed with water and dark.
Surrounds Sonic in Water and gives him a double jump that pushes him slightly forward.
Turns Sonic into dark Super Sonic from Sonic X though his appearance is different as instead of being pupilless his pupils turn red, and Sonic adorns a scarf of the same color to match.
Can be mixed with both fire and water when done it inverts the player's gravity sending them upwards (likely as a reaction to the Sky Empire's Magnets.)

#### Forms

and fire a laser from his fingertips that damages enemies and pierces sheilds.

### Zones/Maps

* Present
* Past

### Remakes & Remasters

fixes typos, revamps the shop system,
restores some unused content, and adds
(When the dev actually works
on it, that is.)
Planned features include adaptive ascpect ratios (16:9 or 4:3), new menu system, new character redesigns, new playable campaigns, restored unused content, amongst other changes.

### Trivia

* The logo on the game's title screen can be slowed down, sped up, or changed direction by using the arrow keys.
* In West City is a statue of what looks to be Gerem that when read says "..e ...o, th. .n. that .ried .. .ave ..e ..k Empire" while damaged it supposedly says "The Hero, the one that tried to save the Sky Empire." implying that Gerem was the one who tried to save the Sky Empire in the unaltered timeline but seemingly failed.

### References

1. ↑ https://www.youtube.com/watch?v=sc7i2Q6V9PU&list=PL1nvNHfuspY9XBZKF0tNxOCjV0fyx0hwK

# Unused Content

Sonic Chrono Adventure, has a wide variety of unused content not used in the final game that was intended to be some of it still in the game's code and fully functional.

2. **Unused Wild Wave Zone Boss**
3. **Unused Beam Polem Boss**

### Unused South Lakes Map + NPC

In the files of the game's prototype ***Sonic Before the Sequel Aftermath*** is an unused map of the south lakes that looks very different to how it does in the final game with only Wild Wave Zone South, East City, and West City being marked on it the unused map also looks much bigger than the final and appears to resemble the number "8". Also in the games files was an NPC that was cut from Sonic Chrono Adventure this NPC was previously thought to have been an early design for the character of Gerem looking more bird-like but it's been found if the NPC is restored they have dialouge where they denote their name as Peth which confirms they aren't the same.

It may seem like "Peth" was an early name for Gerem but we know this also isn't true as he did have one but it wasn't peth as Lakefeperd mistakenly uploaded earlier versions of 1.0's source code before eventually updating them revealing planned names for the character to be "Chrono" or "Geren" before landing on Gerem. It's likely "Chrono" was cut due to a character of similar name in the 1995 Super Nintendo release of Chrono Trigger. Video of the NPC can be found below.

### Unused Wild Wave Zone Boss

Turns out Wild Wave Zone (East) was intended to have a boss fight, we know this because it's stored just below the area where the Chaos Emerald is obtained, complete with triggers. Sadly the boss was either scrapped shortly after the sprites objects and triggers for it were implemented, or was simply never coded leaving what it did mostly up to speculation it was found via the source code (Which is 1.0) so it remains unknown if it was intended to be re-implemented into 1.1 or not. It seems more likely to not be the case however, as the game was already done at that point and 1.1 was simply a patch to fix bugs and typos.

A contributor tried to look into leftover code and did manage to make it dash across the screen when triggered, if this is a leftover behavior, and given speculation based on accompanying sprites, objects, and Coconuts in the Angel Terminal, it seems likely that Sonic would've found the emerald only for the boss to then dash by, stealing the emerald in the process forcing him to fight and defeat it to reclaim it. The boss's attacks would consist of attacking from the background and a laser beam it fires from it's mouth. Given it's appearance it's very likely a Polem or something resembling one and would use the Polem Death Animation.

### Unused Beam Polem Boss

In the code for Sonic Chrono Adventure there is a Polem encountered in Polem Palace Zone (Dungeon) that will say "GRAH! I don't belong behind bars! I'm a boss! I should be fighting you, C'MERE!" while some took it as a joke this line of dialouge left many players wondering if he was telling the truth and as it turns out, he was. This Polem was meant to be fought in the Old Castle Zone as the boss and the triggers were found below the stage but never activate due to being out of bounds draging it back in via the Source Code reveals the fight is still fully functional a video of which can be found below.

It's unknown why it was scrapped though given it's boss fight takes place in the present and there's an unknown level transition next to the boss near the doorway to the Old Castle it seems as though it'd be locked up in the past and the player would have to go to where they entered the Polem Palace in the present doing so would lead to an area in which you'd fight the boss as it seems to have been frozen in some black liquid it breaks out of before the fight. In the final game the entracne to the castle is blocked by dibree due to the Sky Empire's fall likely being why it was scrapped.