Hilly.io unblocked at the school game is an interesting game of survival, for you have to survive against many monsters in a jungle. At the beginning of the game, you will be portrayed as a small fly. As a fly, you must learn two things real fast; to fly with precision and to survive the attacks of bigger animals. Once you beat a level, you will be able to move on to a different (bigger) animal that has more power. Keep in mind that as you progress, that other players or animals are progressing to become bigger and better as well. So, for you to not be a bigger animal's lunch or snack, you must keep up your offensive AND defensive game in balance. And don't forget to have fun!