Here is the full list of all 17 Trading Time: A Croak Tale - there are Prologue achievements.
Stay airborne for over 4 seconds
Make your first camp fire
Chase away 200 fireflies
Get stung by thorns
Jump [100] times.
Speak to The Shaman for the first time.
Hit the shaman with a pillow
Hit The Shaman with a thrown item.
Retrieve your plant and leave the island.
Find and return The Shaman’s missing arm.
Throw 50 items
Walk 10km
Jump on all the lily pads in the large pond in order
Take a starfish to the crater
Go through the secret entrance whilst the door is locked
Plant all flowers
Find a way on top of a house