Speed Highway (Sonic Generations)

Speed Highway is a stage in the game Sonic Generations. It represents Sonic Adventure in the Dreamcast era of the game. Its design and layout is very similar to that of Empire City from Sonic Unleashed and Starlight Zone from Sonic the Hedgehog, including towering buildings and skyscrapers, long, winding highways and several street signs and neon billboards with references to other characters. Various enemies from Sonic Adventure return, such as the E-10 Cop Speeder and the E-06 (Bladed) Spinner.

Act 1

 * Cream: Chao Hunt: Compete with Cream to find more Chao than her and reach the goal.
 * Hot Pursuit: Avoid getting hit by the pursuing enemies and get to the goal in time.
 * High Speed Challenge 2: Collect Power Sneakers to reach the goal before time runs out.
 * Resisting Arrest: Beware of Cop Speeders! Reach the goal before time runs out.
 * Doppelganger Race!: Face of against Sonic's double and beat him in a race to the goal.

Act 2

 * Overdrift: Grab as many Rings as you can while drifting and get to goal in time.
 * Hot Pursuit: Chase the Sprinkler enemy that's dropping Rings. Collect a set number and reach the goal in time!
 * Doppelganger Race!: Face of against Sonic's double and beat him in a race to the goal.
 * Drill Baby Drill: Smash your way through boxes as you descend to the goal before time runs out.
 * Espio: Master of Camouflage: Only the searchlight can reveal Espio. Face him and get to goal in time.

Characters

 * Sonic the Hedgehog (Classic and Modern)
 * Cream the Rabbit and Cheese (Rescued characters, Mission for Act 1)
 * Espio the Chameleon (Mission for Act 2)

Enemies

 * Cop Speeder
 * Spinner

Trivia

 * This version of Speed Highway does not include the "At Dawn" section like the original version, but the background in Act 2 changes to sunrise after passing through the skyscraper section.
 * While Modern Sonic runs down the skyscraper mid-way through the level, Classic Sonic appears to go inside the same building, as they both share the same features.
 * On the Chao in Space billboards in this stage, multiple Sonic characters are listed as appearing in the film. One of the characters listed is Shadow the Hedgehog, whose name is misspelled as "Sadow".
 * The fact that Cream appears in Speed Highway might be a reference to her cameo appearance in Sonic Adventure DX.
 * While the cars in the original Speed Highway were modern designs, the cars in this version are all Volkswagen vehicles.
 * This is the second final stage in this game as Speed Highway is Tails' last level in his storyline, the first being Sky Sanctuary (in the case of Knuckles' storyline)
 * In the hub world, just behind Cream and Cheese, there's a "Chao in Space 4" movie poster.
 * The gameplay in the original Speed Highway is completely in 3D. However, in Sonic Generations, the perspective switches between 3D and 2D. The same applies to City Escape, Seaside Hill, and Crisis City.
 * Both Sonics seem to go through Speed Highway at different times of the day. Classic Sonic seems to run through the highway just after dusk, while Modern Sonic runs through it during the last minutes of night to the beginning of dawn.
 * One of Classic Sonic's missions takes place in the daytime, approximately early-to-mid-morning.
 * During said mission, the buildings and skyscrapers slightly resemble the same buildings and skyscrapers of Empire City in the daytime.