The 25 Years of Sonic the Hedgehog

Sonic Rush (2005)

At the beginning of the story, Blaze the Cat, an antisocial princess from an alternate dimension, appears in Sonic's world. Her world had the seven sol emeralds—gems similar to the chaos emeralds—which it relies on for survival. However, they were stolen by Dr. Eggman and as Blaze was chasing him, a light brought her to this world. Blaze then makes it her goal to personally retrieve the emeralds from Eggman. Upon finding Eggman, the doctor flaunts a sol emerald, stating that he needs them to access ultimate power. Enraged, Blaze defeats Eggman and regains the emerald. Though Eggman escapes, Blaze is determined to get the rest.

Confused and alone, Blaze ponders how she will get the sol emeralds back, and how to return home. She soon spots Cream the Rabbit and Cheese hiding in the bushes, and is surprised by Cream's politeness, the young rabbit eager to make friends with Blaze. Brought to Cream's home for a cup of tea, Vanilla and Cream convinced Blaze to have the latter be her local guide after hearing her story. However, Blaze dismissed their advice to seek Sonic's aid, believing she can do this alone. Despite having Cream tag along, Blaze remains mostly indifferent to the young rabbit's efforts to be her friend.

Elsewhere, Sonic encountered Eggman during a run, who boasted about how he will soon have ultimate power. Upon defeating Eggman, Sonic finds a sol emerald that Eggman dropped, at which point Blaze appears and reclaims it, thanking Sonic for defeating Eggman before leaving. Confused, Sonic teams up with Tails to figure out what is going on while collecting the chaos emeralds.

Eventually, Sonic comes across a new foe—an Eggman-lookalike named Dr. Eggman Nega, who is bend on domination as well. After defeating him, Tails discovered that the space-time continuum has been torn due to the sol emeralds residing in Sonic's dimension, resulting in a slow merging of both Sonic and Blaze's worlds which could spell doom for them all. Sonic grew suspicious of Blaze's alliance, and along with Tails, looks for her. Along their adventures, both Sonic and Blaze came across Knuckles and Amy. Blaze in particular started to ponder who Sonic really is, as everyone she meets mentions Sonic in one way or another.

Eventually, Sonic and Tails find Blaze and Cream. Sonic questions Blaze about her nature, but she does not give any information, because she says it is her responsibility, and leaves with Cream. Not keen on letting Blaze do this alone, Sonic and Tails follow her. While Sonic chases her, Blaze starts to soften up to Cream and begins to experience friendship for the first time, something which she allowed herself due to her strict discipline.

Sonic ended up following Blaze to Dead Line, where it is revealed that Eggman and Eggman Nega are working together to collect both the chaos emeralds and the sol emeralds. Blaze declares that she will destroy both Eggmans and save both worlds on her own. When Sonic once again questions her intentions, she fights him, believing Sonic is getting in the way of her duty. During their fight, Blaze reveals how her powers and duty "cursed" her to a life of solitude, which is why she has to be alone. After a final clash, Sonic makes Blaze see the value on having others to rely on and Blaze realizes the error of her ways. In the aftermath, Eggman kidnaps Cream, but Blaze goes after him while Sonic takes on Eggman Nega. After their fights, Blaze reunites with Cream, whom Blaze finally acknowledges as her friend. Meanwhile, Sonic watches their victory with a smile, but is alerted to a smitten Amy coming towards him, prompting Sonic to run away from her.

After Sonic and Blaze have collected all the chaos emeralds and sol emeralds, Blaze had her emeralds stolen from her by Eggman and Eggman Nega, who drained the sol emeralds of their power. Sonic then meets up with Blaze, who despaired over failing to restore balance between the two worlds. However, Sonic and his friends help Blaze realize the meaning of friendship, which in turn recharges the Sol Emeralds and turns her into Burning Blaze. With Sonic using the chaos emeralds to transform as well, Super Sonic and Burning Blaze confront the Eggmans and defeated them, foiling their plans to built an Eggmanland dominating both dimensions. As their worlds are restored, Sonic and Blaze chat about how they and their friends will miss one another. Blaze said it is best she leaves like this, but thanks Sonic for his help. Before Blaze left, Sonic promised her that they will meet again and the two shake hands just before their dimensions pull them back to their worlds. Back home, Blaze realizes that carrying the world's weight on her own shoulders could lead to irresponsibility, and so she vowed to live life with a more open heart. Back on Sonic's world, Cream is crying because she misses Blaze, but Sonic cheers her up by telling her that Blaze promised to return someday.