This stage is a simple platform with a roadblock on each side. It has a count of 50 Bananas, and seems not too hard. Once the timer starts, the platform slowly starts rippling, and makes a circle-shaped wave, hence the name. It soon gets very hard to control though.
Perfect Score Tutorial Edit
Starting with the inner circle of bananas, control your monkey using the joystick very carefully. Now go around the ring of bananas, until you get all. Then continue with the outer circles. You only have 30 seconds to do this, so be slow but fast.