This is a test for your eyesight accuracy and colour blind. If you are looking for a good puzzle game or an improvement for your vision. This could be one of your perfect choice.

How to play :
Find a different tile among tiles which its colour is slightly different from others. By tapping on it if you are tapping a wrong one, your gameplay time will be deducted. So, please make sure before tapping.

There are 4 different modes :
- Easy
- Medium
- Difficult
- Extreme

Benefit :
Your eyesight could be slightly improved on finding differences.

Instruction before playing :
Keep calm and be focused.

Enjoy :)
- Tony's Lab Experiment Team