Here is the full list of all 14 Kinduo achievements.
Win the impossible challenge!
Use the metal crate to activate a button
Acquire the aerial stomp skill
Acquire the aerial dash skill
Get key with 2 characters
Use electricity to move a platform
Change characters in solo mode
Some people don't respect the dead
Do the leaves burn?
Can you blow up a snowman?
Destroy ice block
Find your way back home
Activate 3 buttons in the same stage
Collect the secret egg