Here is the full list of all 37 Shape Quiz achievements.
You solved your first shape.
You played the Demo!
You knew 2 shapes in a row.
You knew 10 shapes in a row.
You knew 15 shapes in a row.
You knew 20 shapes in a row.
You knew 50 shapes in a row.
You knew 80 shapes in a row.
You knew 100 shapes in a row.
You knew 125 shapes in a row.
You knew 150 shapes in a row.
You knew 175 shapes in a row.
You knew 200 shapes in a row.
You collected 5 Diamonds.
You collected 10 Diamonds.
You collected 15 Diamonds.
You collected 20 Diamonds.
You collected 50 Diamonds.
You collected 75 Diamonds.
You collected 100 Diamonds.
You collected 250 Diamonds.
You collected 500 Diamonds.
You collected 1000 Diamonds.
You collected 5000 Diamonds.
You collected 50000 Diamonds.
You collected 1 Stars.
You collected 10 Stars.
You collected 20 Stars.
You collected 50 Stars.
You collected 150 Stars.
You collected 250 Stars.
You collected 500 Stars.
You collected 700 Stars.
You collected 1000 Stars.
You collected 2500 Stars.
You collected 5000 Stars.
You collected 9999 Diamonds.