Animal TD Friendship Society

Animal TD Friendship Society is a super casual entertainment game.

During the game, every time 3 animals fall, a math problem and 3 answer options will appear on the top of the page. The player has 2 seconds to choose the correct answer. If the correct answer is chosen, the game area will be enlarged (the upper end line moves up by x distance, and the lower end line moves down by cx distance). If the answer is wrong, the end line will shrink, and then the middle game area will flip regardless of whether the answer is correct or not.