Naturally, they chose Jet & Sonic to go first on the line. These were released well before the 20th Anniversary celebration figures began to appear. They were re-released with the rest of the Riders figures.

Here is the MIB figure for Jazwares Sonic the Hedgehog Free Riders figures. Of course, they chose Jet Hawk & Sonic. Each one comes with hover board & goggles accessory. You can remove the figure from the board, and snap the goggles onto their head. Sonic's no clone either, he has the different shoes, open hands, and banded gloves. The box sticker says "Removable Figure"

For more comparisons & details go to Jet the Hawk's page.