We simply have to make these monkeys go happy, because we have no choice. Crying monkey is surrounded with little monkeys and we have to solve puzzles to put a smile on those cute little faces. This time in Monkey go Happy Marathon 4 game you have to collect coins you can find scattered around every level. There will be 3 on each level and you shouldn't forget to pick them up. When you have enough you can buy toys for baby monkeys. Every toy is three coins more expensive than the previous one so if you want all your monkeys to have toys you have to finish all levels and never forget about coins. Puzzles you have to solve are not too difficult and once you start you'll find that sometimes you have to pull a stunt on someone or make a practical joke. But don't worry everyone is well intended and there will be no hard feelings when somebody ends up with a dog poo in their ice cream or something.