Our Monkey Go Happy Games are never-ending, and the reason for that is mainly because kids still love to play them a great deal, so as long as they love them, we are going to make sure to still bring them, just like it is the case right now, where the sad monkeys are going to the arcade place to try and get happy, something that you are going to help them out within this new and awesome game called Stage 399, a new interactive puzzle game that we believe none of you should be missing out on since you would only be missing out on fun. As we said, you are at the arcade, where there are games available like Super Moorio Sisters, Pact Man, Donkey King, or RAM Page. You interact with the items around you to try and find the ten mini-monkeys, collecting them all, and add other items to your inventory to use them on a later date. Of course, your main goal is to move around and interact, solve puzzles so that you make the monkey which is sad when you start the game become happy. It is as simple as that, so now that you know how to handle yourself, give the game your best and don't hesitate to try out more content from the same category, you are guaranteed to love it!