There are only a few rules to this game and lots of skill involved. Rule one - monkey can jump only over crates and will slip on the banana, while duck will stumble over the crate and easily jump over bananas. The game is a bit hard because there is a split screen and you need to follow both to successfully move forward. There are only two commands you need for this challenging task. An up arrow key is to jump over an obstacle and down arrow key to switch the participants.