Here is the full list of all 17 Koala Kids achievements.
Complete the game in single player. Not necessary to unlock every item.
Complete the game in single player, unlocking everything.
Finish building the house.
Unlock all the flowers.
Get all the hats.
Unlock all band members.
Lose 20 treasure on death.
Collect 8000 total treasure in a world.
Use a water bucket.
Use a snare trap.
Use a dynamite.
Play game for 10 min in one session.
Hide in a bush.
Get the first hat.
Meet the banker for the first time (At the end of the level).
Complete the game in coop. Not Necessary to unlock every item.
Complete the game in coop, unlocking everything.