Here is the full list of all 30 My Brother Rabbit achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Leave the Rabbit Hole.
Bring the fever down.
Fix the rainbow divider.
Leave this defiled place.
Pump all the objects.
Use all the colors.
Make all the rubber ducks quack.
Free the Rabbit.
Find all the spiders.
Give the test results to the Doctor.
Find the cure somewhere else.
Uncork all of the test tubes on the tree.
Sculpt an ice swan.
Lower the big baobab.
Solve the tangram puzzle.
The giant robo-moose is ready.
Startle all of the signal birds.
Try all of the robo-moose hands.
Grow the ladder from the beans.
Solve the 4-window puzzle.
Move the bike to the top.
Fly to the rescue.
Find all the turtles.
Open all the clam shells.
Collect all the pearls.
Use the bubble to move heroes up.
Put the wheels on the cart.
Finish the game.
Follow them to see where they flew.
Interact with all the yamyams.