Cute Signs Shades

Cute Signs Shades, a funny superposing game, the block will upgrade, when it was piled.
Move the shape block and put it to the right place, the same two will be superimposed, and upgrade to a new shape block. When one row has same shape, they will smash. The higher the grade, the higher the score you get.

Features,
---Shape upgrading;
---Color superposing;
---Easy to play, but there is still challenge for you too;