Shadomega

Omegadow is the slash ship between Shadow the Hedgehog and E-123 Omega from the Sonic the Hedgehog (fandom) fandom.

Canon
Shadow has been known to trust Omega as a partner in his missions, though with a mutual understanding of both of them being seen as weapons used for destruction. However, their relationship goes beyond their seemingly gruff, aloof, and mighty exteriors, revealing a trusting, mutual friendship between the two. This relationship is first shown when Shadow looks out for Omega in Sonic Heroes halfway into the game. This was also shown in Shadow the Hedgehog when Shadow willingly helped Omega in Iron Jungle and Lava Shelter. In Sonic the Hedgehog, Shadow is the one who first spots the deactivated Omega, 200 years into the future. Shadow shows real sadness as the sight of this, as Rouge has to force him to continue moving. Both Shadow and Rouge were somewhat saddened by Omega being reprogrammed to hunt down Shadow in the future, due to Shadow being seen as too strong of a lifeform, causing humanity to fear him. The bond between the two may have been strengthened by the fact that Shadow is the Ultimate Lifeform and that Omega is considered the Ultimate Robot and share a common importance to the world.

Though Sonic Chronicles: The Dark Brotherhood is not considered to be a canon game, Shadow and Omega appear to have a much closer relationship in it. Shadow joins Sonic's team to find Omega, he clearly shows anger if the player refuses to rescue him and states that if something has happened Omega, then he will "be very upset." He also states that "he was also my friend" which shows how much he cares for his wellbeing, as this is the first time that Shadow openly admits that Omega is his friend. This is also shown when the player finds Omega in Metropolis and Shadow orders Eggman to be quiet after saying not to bother checking if Omega's okay. When Tails says that robots are coming, Shadow responds with, "Good. I need to smash something." Again, this is shown when Tails realizes he can fix Omega, Shadow simply orders him to "do it."

In the Snapcube fandub,

Fanon
Omegadow isn’t a very popular ship, though there’s some fanart of them as a couple.

Fandom
https://archiveofourown.org/tags/E-123%20Omega*s*Shadow%20The%20Hedgehog/works https://m.fanfiction.net/s/9794561/1/Shadow-X-Omega-fanfic-What-I-Feel https://m.fanfiction.net/s/8902515/1/Veiled-Secrets

Trivia

 * Shadow and Omega are partners