☆ Retry function ☆
Mistake was to happen to the operation and also okay!
You can start over soon.
☆ Next function ☆
"Hmmm, can't solve this!"
It's OK,you can try next problem.
☆ Share function ☆
Ask them solved to someone by using the Share function!
☆ Change the background color ☆
Now change the background color from options!
The challenge by changing the mood to the next problem!