Board Thread:Plants vs. Zombies 2: It's About Time/@comment-24725728-20140512192458/@comment-24657844-20140517153542

Master3530 wrote: Pvzgamer wrote: DragonFruit21 wrote: Any1 have an idea what Roto and Zoom-shroom do? i think roto rotates. I think zoom shoots bolts. Zoom shroom will bounce wizard zombies projectiles.

This information is from BuzzBuzz, however Walter said, that they probably teleport a row of zombies back.