Have you ever heard about Sudoku without number?

Sudoku Fruit Heroes - a beautiful blend of Sudoku and creative puzzles
Sudoku is one of the best games to practice your logical thinking! But Sudoku Fruit Heroes is outstanding due to its fun actions and unique characters designs. The game is suitable for all levels – from beginners to expert! You must be impressed with the game at first glance.

Find Sudoku Fruit Heroes on facebook. Enjoy your game and challenge your friend!!!

If you like it Subscribe for iOS/ Android version testing

— modified on Jan 12, 2016, 9:52:38 AM

I have introduced my sudoku game. The game-play is like other Sudoku game but the design is very creative. I don’t know if you guys like it or not. So could you play and tell me if there is something I need to change in the game to make it perfect? I think it's too easy. Do I need to make it harder?
I’m finishing iOS version for the game. So I really expect some suggestions/ comments from game community.
You can test the game on facebook version here
https://apps.facebook.com/sudoku_fruit_heroes/
Game trailer:

Take a look:

Thank you!

Thank you.
I am sure that you won't disappointed. I have many ideas for this game and I am trying to build it, here is some features to make the game harder

https://apps.facebook.com/sudoku_fruit_heroes/
Thank you!