Deep in the jungle lived monkeys who tried in every way to protect their territories. Their tranquility was suddenly shattered by the sudden invasion of balloons. Now the monkeys must fight them. Your task will be to buy monkeys and defense towers that shoot spikes. Each unit has its own characteristics. For example, the cheapest monkeys shoot poorly, but if you want a stronger monkey, you have to raise money and buy one. You can also sell units you already have for less.