To the Right, To the Right

To the Right, To the Right is a special mission in which you must defeat 40 waves of bloons while you can only place towers on the right side of the screen. Every 10 rounds, your towers will be shifted farther to the right (if they hit the path, they will move over it). If you complete it, you get $200 Monkey Money. If also acts as a companion mission to To the Left, To the Left - if you complete one of them right after completing the other, you will get a bonus of $100 Monkey Money, in addition to the $400 dollars you would already get for completing both.