Voir Adventures of Sonic the Hedgehog, Season 1, Vol. 2 - Episode 2

When S and G rocket to outerspace to mine a radioactive mineral from asteroids, Sonic and Tails stow away. Through a blunder by the robots, all are stranded in space, and Robotnik tries to blow all of them out of the stars. Sonic builds a rocket out of S and G's spare parts, and all return to Mobius.