Easy Find Difference

Game Mode：
1. Find the difference - find the difference between the two pictures, 3-5 differences in each level
2. Find the challenge - find the difference between the two pictures, each level is 9 different, there is a time limit
3. Find Duplicates - Find duplicates
4. Find the same - find the same content as the prompt picture
5. Find the location - move the prompt image to the vacant location