What is happy tree friends pop?

Happy Tree Friends Pop is a mobile game based on the popular Happy Tree Friends animated series. The game is a bubble shooter game where players shoot bubbles to match three or more of the same color. The game features different characters from the series that players can unlock and play with. Each character has a unique ability that helps players clear the bubbles. The game also offers different power-ups that players can use to help them advance through the levels. The game is available for free on both iOS and Android devices.