Crisis City (Sonic Generations)

Crisis City is a stage in the game, Sonic Generations. It represents Sonic the Hedgehog (2006) in the Modern Era of the game. A rival battle with Silver the Hedgehog is also fought here and can be accessed from the level hub. This is likely part of an alternate timeline, as the events of Sonic the Hedgehog (2006) were negated due to its ending.

Act 1

 * Doppleganger Race: Face off against Sonic's double and beat him in a race to the Goal.
 * Goal Post Juggle: Don't let the Goal Post hit the ground as you get to the Goal in time.
 * Vector: Through the Storm: Call for Vector with Y/Triangle to get by spots you can't pass and reach the Goal in time.
 * Flame Shield Challenge: Use Flame Shield to reach the Goal in time and obtain the Flame Shield Skill.
 * Ring Time Challenge 2: Use Ring Time Y/Triangle and reach the Goal in time to get the Ring Time Skill.

Act 2

 * Power Stomp Challenge: Use your Stomping skills to reach the Goal before time runs out and unlock the Power Stomp Skill.
 * Doppelganger Race!: Face off against Sonic's double and beat him in a race to the Goal.
 * Switcheroo: Put your brain to the test by hitting switches to get to the Goal in time.
 * Blaze: Piercing the Flames: Call Blaze Y/Triangle to get through the flames and get to the Goal in time.
 * Four-way Cannon Cavalcade: Go from one Four-way Cannon to another and get to the Goal before time runs out.

Act 1
Classic Sonic, as usual, has to get to the Goal Post. However, a fire tornado blows the piece of building it's on away. You must chase after the Goal Post and avoid the tornado's winds in order to finish the level. At the end of the stage, you have to push your way through a gale that is constantly blowing Sonic back.

Act 2
As with previous acts, Sonic's mission is to reach the goal ring. He must cross fiery chasms and lava pits, before running toward a fire tornado while dodging the debris it throws at Sonic.

Silver the Hedgehog Rival Boss Fight
The rival boss battle with Silver the Hedgehog is set upon a long highway in Crisis City, with Silver flying alongside Sonic. Silver will attack Sonic with a wide variety of Psychokinetic attacks. Silver starts off the fight by launching a car directly at Sonic. Silver can attack by either hovering three cars directly above Sonic and try to crush him with them, usually smashing one down before the other two, but can switch combinations every time the attack is done, picking up and throwing one object at a time, or collecting various objects from the highway to launch at Sonic. However, at this point, Sonic can use his homing attack on said objects to attack Silver. Silver can also attack by creating a large, makeshift ram to charge at Sonic. Sonic has to jump onto the ram and boost forward to get close to Silver, and attack him. During the battle, Silver can throw a Psychic Knife, a large blade of psychic energy, either horizontally or vertically (similar to the Egg Emperor slash attack in Sonic Heroes), to try and attack Sonic. Silver's final, and strongest attack, known as Meteor Smash, has him gather up all manner of objects into a large ball, and launch it into the highway behind Sonic, crushing Sonic if he cannot outrun it. While Sonic runs from the giant ball of rubble, Silver will try to crush Sonic with a large container. Sonic must avoid this, while, at the same time, boosting to catch up with Silver and attack him, in which successfully doing so causes Silver to fall to the ground and get crushed by his own ball of debris, ending the fight, and granting Sonic a Chaos Emerald

Hard Mode
In hard mode, Silver is much faster in executing his attacks, Silver will also attack with his Psychic Knife multiple times in succession. When trying to crush Sonic with three cars, Silver will usually smash them all down at once. During Silver's final attack, Silver will try to crush Sonic with two containers in succession instead of one.

Characters

 * Sonic the Hedgehog (Classic and Modern)
 * Blaze the Cat (Rescued character; mission for Act 2)
 * Silver the Hedgehog (Rival boss for Modern Sonic)
 * Vector the Crocodile (Mission for Act 1)

Trivia

 * This is one of the only stages in Sonic Generations to come from an alternate timeline. The other is Stardust Speedway, which is set in the Bad Future.
 * The classic remix from this stage is very different from the original version, it's more heavy, but still sounds like the original.
 * This stage is the only stage that is also a boss stage on the console version. Interestingly, Sonic and Silver never actually encountered each other face-to-face in this stage.
 * One of the balls of debris that Silver throws contains a "Chao in Space III" sign. This sign can also be seen in the Hub World.
 * Silver is the only rival boss not to be announced in any of the era trailers. Instead, Perfect Chaos (a boss of the Dreamcast Era) is shown at the end of the Modern Era trailer.
 * If you look to the lower right hand side of the hub world, you can see a blue rusted sign saying "Central Park".
 * The last part of the stage, where Sonic rushes towards the tornado of flames down a ruined highway, as it throws debris at him, is, curiously, in reverse to the original level, where Sonic had to run down a highway away from the tornado as it threw debris at Sonic.
 * After Blaze assists Sonic in the "Blaze: Piercing the Flames" mission in Crisis City, and Sonic talks to her in the hub world, she remarks "I never thought I'd find myself in Crisis City again", leaving a giant plot hole in how she remembers the place.
 * Sonic does not use a snowboard in this level as he did in Sonic the Hedgehog (2006). The most likely explanation for this is that City Escape already used a snowboard.
 * In the "Blaze: Piercing the Flames" mission, Blaze can be used to defeat Iblis' minions.
 * This is the only stage in the Modern Era to have Modern Sonic running when the words: "Ready, Go!" appear on screen.
 * Like Station Square, this stage's locations are based on New York City.
 * This is the only stage in Sonic Generations with no robotic enemies.
 * Takashi Iizuka said there was going to be a cutscene when the Sonics completed the stage, but it got cut.
 * The beggining of the remix of Act 1 of this stage looks like Mortal Kombat's main theme. The same happens with the beggining of the original version, that looks like Koopa's Road from Super Mario 64.