Here is the full list of all 20 Colorzzle achievements.
Clear level 107.
Clear level 1.
See how the color spreads
Clear the stage where Color-change blocks first appear
Clear the stage where Color Ray blocks first appear
Clear the stage where Reflector blocks first appear
<3
Clear the stage where Multiple Color Ray blocks first appear
Why can't we give love, give love, give love, give love....
Clear the stage where RainbowColorable blocks first appear
'Cause love's such an old-fashioned word...
Clear the stage where Growth-spread blocks first appear
Clear level 83.
Clear level 86.
Clear level 90.
Clear level 92.
Clear level 97.
The end.
Make more than 20 moves in one stage.
Make more than 50 moves in one stage.