This is the elf Hedge Hog!
The only way to get it is for 80500 Gingerbread or trade.
It was only avalible at the Christmas Event.
Its tricks of Jump, which has it roll into a ball when jumping into the air, and Trick 2, which has it spinning into a ball in place for a while and then rolling off quickly, are references to the Spin Jump and Spin Dash moves from the Sonic the Hedgehog video game series.