NOTE 1: It's the first CTR crossover cartoon with G/JA star Petra.
NOTE 2: The first CTR easter special ever made.
NOTE 3: Features the G/JA Cartoon All Stars (Sonic, Moosy and Lucky)
...
https://www.youtube.com/watch?v=YdVKlvNvrB4
Synopsis:
Sonic moves into a new house and tries to get along with new next-door neighbor, Axel. If good fences make good neighbors, then Axel and Sonic must be the best neighbors of all!
Characters:
Axel (Voice: Brian Posehn)
Sonic (Voice: Clarence Nash)
...
https://www.youtube.com/watch?v=yt7HXwvMdiM