Board Thread:Questions and Answers/@comment-1031724-20160303063814/@comment-25622445-20160326203321

They went to Teotihuacán, no just kidding, they probably went to the afterlife, considering that Tikal was a spirit, and Chaos was technically also a spirit, considering that Sonic destroyed him at the end, albeit "purifying" him of his negative thoughts and allowed to rest in peace. Tikal sacrificed herself to the Master Emerald (who is the true deity in my opinion, although gods can die, ever hear of Ragnarök?), with that in mind, Chaos did likely die, as mentioned above by KillRoy321, either that or they went back to their own time. Able to live in peace once more.