Plants vs Zombies

[Mistyeyed]

I know there is a challenge coming up next week for this game,but Im playing for an older badge where you need to get 52 repeaters,can someone tell me which game they are in and where I actually find them,i tried both adventure and survival mode and didnt see them in either game..any help would be appreciated..ty

[disneyland lady]

The repeater is the green pea shooter that shoots 2 peas at a time. I think they are in both modes.