Here is the full list of all 36 Samsara achievements.
Complete the whole game again in inversed mode
Complete a whole chapter with all levels inversed
Complete the game in 3 hours
Complete Samsara
Interrupt the cow being taken by aliens
Tap the beach ball 25 times without it hitting the ground
Knock all four coconuts off the palm trees within one level
The beach ball ed 5 metres high
Complete Chapter 8
Make the rat in fairground to run away
Destroy the lights on the power-lines in the suburbs
Walk through 15 in-level portals during one level
Complete Chapter 7
Popped a balloon at the fairground
Start the horses racing in the fairground
Complete Chapter 6
Complete Chapter 5
Complete a level inversed
Create an electric surge in the suburbs 5 times
Turn on the Fire hydrant in the Suburbs
Bang the bins in Suburbs
Make the raccoon run away
Complete Chapter 4
Complete Chapter 3
Killed both versions of Zee simultaneously during a level
Killed by Vines
Make the bats in the Caves squeak
Complete Chapter 2
Get Zee stuck within a puzzle
Complete Chapter 1
Make the leaves in the Woods fall from the trees
Make the birds in the woods or park fly away
Complete the prologue
Create a ripple in the water during the Prologue
Fall from a big height
Rock the horse in the Prologue