Here is the full list of all 42 Scrap Garden achievements. It takes around 3-4 hours to unlock all of the achievements on Windows.
Complete the game
Defeat the dragon
Find the green crystal
Get burned by the dragon
Get to the end of rails
Defeat the toad
Get eaten by the toad
Eliminate 100 enemies
Collect 1500 crystals
Collect 1000 crystals
Defeat the octopus
Go down the hill
Eliminate 50 enemies
Defeat the gorilla
Take a punch from the gorilla
Collect 500 crystals
Find the mp3 player
Defeat the worm
Collect 300 crystals
Break 10 boxes
Throw a ball into the basket
Eliminate 10 enemies
Break 5 policemen
Visit a friend
Collect 100 crystals
Get back the generator
Start playing
Eliminate 300 enemies
Break 50 boxes
Break 100 boxes
Find all holograms
Complete the arcade minigame
Die in the shadows
Let the worm toss you up in the air
Get bitten by piranhas
Find the camera
Find the alarm clock
Find the Rubik's cube
Find the pumpkin
Find the snow globe
Find the card
00110101 01000011 00110000 01010101 01010100