Here is the full list of all 45 Catch a Falling Star achievements. It takes around 8-10 hours to unlock all of the achievements on Windows.
Catch/use 10 "increase basket speed" power-ups
Bump 10 objects with your basket
Catch a StarCoin
Catch 10 StarCoins
Bump 5 ice with the side of your basket, giving you two StarCoins - don't spend it all in one place ok!
Deposit a basket full of stars
Catch/use a "no wind" power-up
Use an in-game power-up
Catch/use an "increase basket speed" power-up
Purchase all the new basket designs
Purchase 10 new basket designs
Purchase a new basket design
Unlock the Japan theme
Unlock the Under-the-sea theme
Catch/use a "less ice" power-up
Bump ice with the side of your basket
Bump a star with the side of your basket
Bump a star off the side of the screen, saving your life
Deposit your 10th star
Save 2500 StarCoins
Deposit your first star
Deposit a basket that hasn't been completely filled with stars
Spend 1000 StarCoins
Spend 500 StarCoins
Purchase an in-game power-up with Starcoins
Buy all the increases in space for your basket
Make your first purchase with StarCoins
Buy an increase in space for your basket
Start the game and behold how awesome the menu is!
Deposit your 100th star
Deposit your 1000th star
Catch a "lose a life" penalty
Catch 10 "lose a life" penalties
Catch/use 50 "increase basket speed" power-ups
Catch/use 100 "increase basket speed" power-ups
Catch 100 StarCoins
Score your first 100 poitns
Score your first 500 points
Score your first 1000 points
Score your first 2000 points
Score your first 3000 points
Score your first 4000 points
Score your first 4500 points
Score your first 5000 points. NICE!!
Deposit a basket with at least 3 ice