From Sonic Retro
Rooftop Run and its hub town Spagonia form the second level in Sonic Unleashed. The area is called Orange Roofs (オランジ ル-フ oranji ruufusu) in the Japanese version, Sonic World Adventure. Set on the rooftops of a European-style town, this level features balloons that pop on contact to propel Sonic upward, as well as aqueducts, clock towers, and obscene speed. A remake of this level appears in Sonic Generations
The night Act Stage makes a lot of use out of pulling switches, and houses an enormous clock tower platforming segment.
Sonic, Tails, and Chip arrive over Spagonia after defeating the Egg Cauldron in Tornado Defence 1, hoping to find Professor Pickle for information about Eggman's plan. However, on reaching Spagonia University, the Professor's offices have been ransacked! His assistant reveals that the professor was kidnapped by someone matching Eggman's description. Sonic heads outside to talk to the residents and look for clues. Various residents point the hedgehog in the direction of Mazuri.
After rescuing the Professor, and restoring a piece of the planet at Mazuri's Temple of Gaia, Sonic and Chip head back to Spagonia. Here Amy Rose makes her first appearence - launching herself at Sonic the Werehog as she always tends to do to any vaguely Sonic-shaped travellers. Though when Amy bothers to open her eyes she decides that the Werehog isn't Sonic, and runs off. Normally glad to see the back of her, Amy's lack of recognition proves unusually depressing for Sonic.
In Pickle's lab, the Prof reveals that he has been able to determine the location of two other Temples of Gaia besides Mazuri's: one in Holoska, and the other nearby in Spagonia. Fighting through Rooftop Run Night Act 1, Sonic acquires a Gaia Key for the temple. Back in the town proper, Tails hands over Pickle's "Uncanny Camera" - a device Chip quickly puts to good use in freeing people from Dark Gaia's possession in the town square, thereby saving Amy.
After fixing the Chun-nan fragment and saving the village from Eggman's forces, Sonic can return to Spagonia to access the area's own Temple of Gaia. The Doctor has his own ideas, however, and the Egg Devil Ray ambushes the hedgehog on a long aqueduct leading to the temple. Once the boss is defeated, Sonic and Chip recharge the blue Chaos Emerald. Pickle next sends the pair to the Holoska temple.
Town - Spagonia
Gigi- (ジジ) He is a chef at a well-established restaurant that is popular with students. It has been in his family for three generations. He fills his days by energetically searching for new menu items, but leaves the rigorous taste-testing to Barbara, his wife. Gigi was affected and controlled by Dark Gaia until he was rescued by Sonic the Hedgehog.
Barbara- (バルバラ) Barbara is Gigi's wife, and she minds the dining room in his restaurant. To this day, her cheerful smile continues to draw the customers in. Of course, Barbara also helps taste test Gigi's newest culinary creations, and the rigors of the task over the years have made her girlish figure a thing of the past. Like Gigi, she was affected by Dark Gaia until Sonic freed her.
Otto- (オットー) He is the landlord of the students' apartment building. Otto has an uncanny knack for pegging which of his tenants has a thing for whom, but sometimes all the love in the air leaves him a bit choked up for his own youthful romances. Along with Lucia, he is the guardian of the Spagonian Gaia Gate. It is his duty not only to protect the Gate but also to guide the "chosen" (which includes, during the events of Sonic Unleashed, Sonic and Chip). Otto helped combine the tablet fragments for Spagonia's Planet Tablet. He is an old friend of Professor Pickle, and the Professor even claimed that Otto inspired him to start out on his career. Despite their friendship, however, Professor Pickle admitted great surprise when he discovered that Otto was a guardian.
Irma- (イルマ) She is Ippolita's grandmother, who keeps her hat on so tight that very few get a good look at her face. Irma's hobby is hat making, and she happens to be quite good at it. Sadly, though, her charming chapeaus seems to be meant for one head only: hers.
Josef- (ジョセフ) He is the owner of Josef's, and not a terribly creative thinker, as the name of his shop surely implies. Recently, Josef realized he didn't have enough hobbies outside of work, so he took up jogging, painting, and photography. None of these endeavors lasted very long.
Marcantonio- (マーカントニオ) Though he seems aloof and cool, this dandy actually sports an interesting ability. He's also single at the moment.
Ciccio- (チッチョ) He is Natalia's husband and the father of Elio. He is a talented shoemaker. For 20 years, he's fussed over every instep and insole. Not to long ago, Cicco heard about wondrous shoes that turn their wearer into a speed demon, and would give anything for a peek at them.
Denise- (ドニーズ) She is the proprietor of a beauty salon. She's famous in town for her novel hairstyles, and prides herself in always being able to spot the latest fads. Since laying her eyes on Sonic, Denise has been sighted carting home armfuls of mousse. What could she be planning?
Aida- (アイダ) She is the owner of a Spagonian jewelery shop. This lady of leisure loves two things: elegance and beauty. Naturally, Aida consider herself a paragon of both, which would explain why her room is plastered with pictures of herself.
Natalia- (ナタリア) A former supermodel whose looks could floor anybody. She's still beautiful: a loving mother of two (including Elio) and a source of strength for her shoemaker husband, Ciccio. Natalia makes a mean cheese pizza.
Franco- (フランコ) He is Federica's cousin and has been friends with Raimondo since they were little. He lives in the student dorms at the university. Franco is the son of a rich entrepreneur, and a very bright student. For some time now, he's had his eyes for Lilli.
David- (ダヴィド) He is a student at Spagonia U. He can be a clown sometimes, but otherwise he's a nice young man who has no trouble getting along with anybody. David is looking for a family-minded girl.
Raimondo- (ライモンド) is a 20-year-old resident of Spagonia in Sonic Unleashed. He is a student at Spagonia U. and a friend of Franco's since childhood. He is also Federica's boyfriend. He's a bit of a lone wolf, and skips classes in favor of spending time by himself. Raimondo doesn't mince words or make any effort to hide his moody side, but supposedly the ladies really dig that. He was controlled by Dark Gaia, until Sonic the Werehog rescued him.
Federica- (フェデリカ) She is a student at Spagonia U. She's Franco's cousin, and a woman of action: once she gets an idea, she follows it through. The downside: most of her ideas involve partying instead of studying. She is one of the people in Spagonia that was affected by Dark Gaia until freed by Sonic.
Lilli- (リリー) She is a mature and sensible archaeology major who lives in the student dorm at the university. She is a year older than her classmates. While Lilli stands at the head of her class, she looks at the people around her and wishes there was more to life than just being serious all the time.
Dora- (ドーラ) She is a university student who attend Professor Pickle's class for her major. Dora has a good heart, but she's still working on the ABCs of courtship: when a boy at school talks to her, she stares at the floor and clams right up. She had been affected by Dark Gaia until she was freed by Sonic the Werehog.
Elio- (エリオ) He is the son of Ciccio and Natalia. The fact that he inherited his father's facial features bothers him to no end, but he's far too nice a kid to ever say anything about it. Elio was affected by Dark Gaia until Sonic freed him.
Mauro- (マウロ) He is Spagonia's number one troublemaker, who subjects his primary target (that would be Denise) to every manner of prank and shenanigan imaginable. There does seem to be a motive behind Mauro's mayhem though. His father, Lucas, was lost at sea; it turns out he's in Apotos.
Ippolita- (イッポリータ) She is a little girl who lives with her grandmother, Irma. She is exceptionally responsible for her age, and never stops doing errands. Ippolita dreams of attending the university when she grows up, so she can "get in a 'ploma".
Prof. Pickles's Asst.- Professor Pickles's helper and his greatest admirer. He takes his sweet time with just about everything, which explains why he's often plugging away at the same work for three days when anybody else would have finished it in one.
There is an oddity in the level layout of the Spagonia hub town. By walking through the wall of the right building from where you enter the Entrance Stage, you can find a button switch. You can press it, but it does nothing. If you instead go to the right, after walking through a couple non-solid buildings, there is a potted plant next to a barrel. If you fall through the floor, you will find that, oddly enough, the sewer section, despite the fade to black, is part of the main Entrance Stage, rather than another map. It's positioned correctly, which suggests that the elevator may have originally worked as more that a teleport.
Acts - Rooftop Run
Day Act 1
Day Act 2
A 2D platforming level set high above the city, here Sonic must use his full range of skills to avoid falling to a nasty death. Homing Attacks, Wall Jumping, and Light Speed Dash are all needed to get through safely.
Day Act 3
A 2D chao-hunting mission. Sonic has to find the ten blue creatures before the time runs out.
Night Act 1
The main Night Act sees Sonic fight his way through Dark Gaia minions in the town. There are a lot of breakable doors hiding collectables and medals. Pushing levers releases huge barrels to break down doors and allow you to proceed. At the end of the level Sonic must climb the clocktower and adjust the time on the huge dial so he can walk across the hands!
Elio's Nights Mission: Elio's Different Locations
In this Mission you need to find Elio inside the clock tower. However, if you go trough the clock tower's door and explore, you will find Elio in 2 other locations: One inside of one of the stores and another right at the beginning of Night Act 1.
Spagonia Adventure Pack DLC
The second Sonic Unleashed downloadable content is the Spagonia Adventure Pack, which adds two new daytime stages, one new nighttime stage, and harder or extended versions of two daytime and one nighttime stage. It was released on Xbox Live for 250 MS Points on 19 March, 2009 and on the PlayStation Network alongside the Chun-Nan Adventure Pack for $3.00 on 16 April, 2009.
Day Acts 1-2 and 2-2
Day Acts 1-2 and 2-2 are harder versions of Act 1 and Act 2, respectively. Act 2, however, forgoes making the player run three laps and instead gives a new layout along side the perimeter wall of the level, a part not accessible in the normal level at all.
Day Acts 4 & 5
Day Act 4 is purely a chase level, where Sonic must defeat three robots flying infront of him while ramming into robots on the ground. Several trip steps and some pits exist to mess the player's performance up.
Day Act 5 is a level with almost no ground. It requires expert use of the homing attack and light speed dash to complete.
Night Act 1-2
Night Act 1-2 relies heavily on hitting switches to advance through the level. It plays from just before the second giant barrel to the first giant barrel in the original act. If you go trough the wall that is in front of a lever that needs to be activated (in the cellar room in the end of the level) you will get to the area with a fountain. In the top of the right building is another Goal Ring, possibly meaning that the level was supposed to be longer.
Night Act 2
Night Act 2 is a large grappling and climbing puzzle through a new area called the Catacombs under Spagonia. There is comparatively little combat compared to other levels.
Hot Dog Trials
These missions can be accessed by speaking with the hot dog vendor in Spagonia after completing the corresponding Day or Night Act. Completing a level 1 mission unlocks the level 2 mission and earns 1 Brainiac Dog, completing a level 2 mission unlocks the level 3 mission and earns 2 Brainiac Dogs, completing a level 3 mission earns 3 Brainiac Dogs and completing all of them will unlock the Pig in a Blanket Achievement.
Day Time Trial
Day Battle Trial
Day Ring Trial
Night Time Trial