Here is the full list of all 11 Shape Cascade achievements.
Reach 100 points
Reach 500 points
Reach 1000 points
Reach 3000 points
Reach 5000 points
Smash the laughman 5 times.
Smash the laughman 10 times.
Catch the Clock 10 times.
Catch the Star 5 times.
Catch the Star 10 times.
Relax yourself at the Cherrytree