Here is the full list of all 21 Jacob Jones and the Bigfoot Mystery : Episode 2 achievements.
Complete Episode 2
Help Jeremiah complete his lifes work
Complete all the puzzles in Episode 2
Help the Beavers
Complete 'Symphony of Stone' in 5 moves or less
Find the hidden cans in the potted plants
Collect all 13 Gnatnobblers
Complete 'A Pair of Planks' in 12 moves or less
Earn 30000 merits
Collect All 10 Gophers
Open the gate between the FireBreak Creek and the Mill
Find the Secret Soda can at the Dam
Find the secret soda cans behind some logs
Collect 50 soda cans
Find the Secret soda can in the mail box
Construct the bridge
Complete 7 Puzzles
Collect 15 soda cans
Complete 'Happily Ever Rafter' in 56 moves or less
Complete the First Puzzle
Complete 'JamtasticBore' in 9 moves or less