Continuing from our last saga of sad monkeys is a new chapter for them, and now with mommy monkey on the block! They're still sad as always, so blue like there's nothing that can change them. But you can help them become one big happy family of monkeys, here on Monkey Go Happy Marathon 3! Solve various puzzles and obstacles to accomplish each level. And in return, these monkeys will automatically become happy. Select from the 5 monkeys in the menu and customize them with various cute hats with unique designs. Unlock the final stage and end the sadness of these monkeys by making them go happy!