Opening

BGM-Sonic Adventure OST-Introduction

A shot of the peaceful blue sky is shown as it pans down to a whole view of New York City. The streets are blistering with civilians walking on sidewalks and cars driving down the street. Slowly, a faint purple windstorm circles Manhattan, as dangerous purple lightning strikes from the transforming chaotic skies down on the city and starts to destroy everything:

D-Avengers: Generations

A clock turns its hands as large trenches form from the lightning as the civilians runs for their lives. Another clock turns as the faint windstorm turns into a violet maelstrom of destruction. A third clock turns to a faint image of Nueva York getting consumed by a white light. A large purple portal opens in the skies of Manhattan and starts to suck up everyone. Multiple shots of clocks depicting visions of New York, Nueva York, Green Hill Zone, and Vale getting devastated and consumed by a white light. And forming from the skies above the inter-connecting eras of the past, present, and future of all three worlds being consumed by the void is the Time Eater as it releases a devastating roar.

Modern Sonic is seen running through a colorless Green Hill Zone as quick visions of clocks appears. Spider-Man Prime is seen swinging through a colorless New York City as quick visions of the Time Eater shows up. Another clock suddenly appears as in amidst of New York City being consumed by the time void, Captain America raises his shield high while standing in front of his Avengers (same team from "The X Factor"). Another clock shows Sally Acorn leading her Freedom Fighters to battle (team consists of Rotor the Walrus, Tails, Antoine D' Coolette, Bunnie D'Coolette, Amy Rose, Big the Cat, Nicole the Holo-Lynx, Cream the Rabbit, Cheese the Chao) along with Knuckles, Rouge, The Chaotix, and Blaze the Cat. Another clock spins, showing Ruby Rose twirling her scythe and jumps back to the rest of Team RWBY, Team JNPR, and other main heroes from Remnant standing in front of Beacon Academy. Quick shots of Lucina slashing the air, Pit landing in front of Palutena, Axl firing his guns with a grin, and the Masters of Evil standing ominously inside Doom's Castle, as well as a dark silhouette of Thanos in space.

Modern Sonic grins as he meets up with Spider-Man Prime in the colorless New York, then the two of them are greeting by Classic Sonic running beside his future self and Spider-Man 2099 swinging along with his past self. The four time-traveling heroes race together to fix New York. Multiple clocks appear, showing the main heroes of this adventure, including Classic Tails and child versions of Team RWBY. The heroes find themselves in a restored Time Square along with the Avengers, Freedom Fighters, the heroes from Remnant, and the remaining D-Avengers, standing together as they stare to the sky and see the massive Time Eater appear. All the heroes get ready to battle, with the Sonics and Spider-Men standing in front of them all.

BGM End

Ending

BGM-Dragon Ball Kai OST-GALAXY (TV size) (by Kyuusonekokami)

The ending starts off with a shot of Earth, Mobius, and Remnant occupying the same cosmic space. Images of Classic Sonic jumping around, a child version of Peter Parker playing around with a science kit, and a child version of Ruby Rose reading fairy tales pop up in front of their respective worlds. Next shot shows the same worlds, replacing the images of Classic Sonic running, Peter at the age of 15 getting bitten by the radioactive spider, and Ruby at the age of 15 constructing her Crescent Rose. The images are soon replaced with Modern Sonic wiggling his finger, Spider-Man in his Classic Suit hanging upside down from a web, and Ruby Rose posing with her scythe behind her back. The next images show Sonic homing attacking, Spider-Man (now wearing the Advanced Suit) holding a man while web-swinging (the exact image from the Amazing Fantasy #15 cover), and Ruby slashing the air. The next shots show Sonic covered in a light-blue aura after charging up his Light Speed Attack, Spider-Man striking the air in his purple Aura Arachnid Mode, and Ruby blankly staring as her body and eyes glow silver.

A quick shot of the eight Exo Stones suddenly appear before showing the badass poses of the golden Super Sonic, Black Ace Spider-Man, and the silver-colored Lunar Maiden Style Ruby. The ending shot is Modern Sonic and Classic Sonic standing side-by-side throwing a thumbs up on the left, Teenage Ruby and Child Ruby standing on the right with excited fist-bumps to the air, and Spider-Man Prime and Spider-Man 2099 standing in the middle, back-to-back with their arms crossed, acting like they are awesome.

BGM End