Get Baby Gorilla Talk by beating the second bungee to get Baboon talk and beating Over the Edge.
Get Terk The Monkey
Finish the 3 terk challenges to unlock him.
Play as Jane
Finish the Terk challenges in world 1 to unlock Jane in the skiing and surfing challenges.
Play as Porter
Finish the Terk challenges in world 2 to unlock Porter in the skiing and surfing challenges
My Move Note
Once earned, you can learn how to execute these moves under the trick moves menu. This is under options in storymode.