Maybe even apes can think some strategy. These here for sure. Come and deploy your herd around a highway. Defend a river against balloons of various shapes and colors. At first you may use only regular apes with knives, however later you will get better gear. For example boomerangs. Everything has its cost, so to have better gear you must make money. For every level you manage to crush all balloons you get points and money. As time goes by balloons are tougher and swifter, so think good.