Corkscrew Move...
	Corkscrew trick move...
	Ground Tumble trick move...
	Jane...
	Porter...
	Scarecrow trick move...
	Terk the monkey...

Beat the Terk challenges in world 3 to unlock the Corkscrew move.

Successfully complete the Terk challenges in world 3 to unlock the Corkscrew trick move for the river surfing challenges.

Successfully complete the Terk challenges in world 1 to unlock the Ground Tumble trick move for jungle exploration.

Successfully complete the Terk challenges in world 1 to unlock Jane in the water skiing or river surfing challenges.

Successfully complete the Terk challenges in world 2 to unlock Porter in the water skiing or river surfing challenges.

Successfully complete the Terk challenges in world 2 to unlock the Scarecrow trick move for the water skiing challenges.

Successfully complete the three Terk challenges in the final levels of the game to unlock Terk.