In Robotnik Headquarters there was a scientist named dr. Robotnik and His stupid lackeys scratch and grounder
Dr. Robotnik: al last my latelest invention to unite both worlds
Scratch: WHAT is it dr. Robotnik
Grounder: WHAT kind of invention have to destroy Sonic
Dr. Robotnik: well, I am putting the last chaos Emerald and to travel to another World.
Scratch: were going to travel to another World.
Grounder: WHAT kind of World we go
When dr. Robotnik opens the portal they went to see another people.
In Sonic boom World
Dr. Eggman is working in another machine with the chaos crystals
Orbot: WHAT are you doing boss
Cubot: are you going to built a time machine
Dr. Eggman: no you imbecile bolthead I am working with traveling time when i am done i am to destroy Sonic.
In Aosth universe
There was a hedgehog running through mobius there was name was Sonic and His sidekick Tails
Aosth(Tails): wow Sonic WHAT going on
Aosth(Sonic): I don,t know Tails, Looks like rubuttnik want to do something in another universe lets check out.
Sonic and Tails go to Robotnik Headquarters when they saw Robotnik enter to another universe.
Aosth(Sonic): come on Tails let,s follow Robotnik and WHAT is he up to.
Aosth(Tails): you got it Sonic
To be continue.....