Rotary is the 5th stage and bonus stage of the 9th world, Big Bang Boom, in Super Monkey Ball: Touch & Roll.
Description[]
This bonus stage features a sombrero-like platform with bananas arranged in three circles inside of it. There are also four banana bunches sitting atop the outer edges. The platform is chartreuse and amber with violet rims.
Strategy[]
Follow one circle of bananas and get all its bananas. Repeat this pattern for the remaining two circles of bananas. Once you have collected all bananas arranged in circles, roll up the platform where the banana bunches, and get one banana bunch at a time. Be careful not to roll up too fast as it is easy to fall out if you do.