Type in the answers to the questions by typing, and try to destroy the buildings with the alphabets that are fired!

There will be a set number of questions for each level.
When you type in the answer to a question, the cannon will fire the alphabet of the word you answered.
Swipe the target cursor to hit the building and destroy it.
The game is cleared when the characters in the buildings are defeated and a certain percentage of the buildings are destroyed.

If you can't answer all the questions and meet the clear condition, you will fail to clear the level.
If you answer the same question more than once in one level, you will fail if you answer a word you have already answered a second time.