Board Thread:Plants vs. Zombies 2/@comment-27557697-20150616150818/@comment-24735666-20150620170402

How could those boulders and flame traps work? If they'd kill plants planted on them then it's ok, but if they'd kill zombies as well, then those lanes would be fully protected :/

I was thinking that plants and zombies that touch the boulder trap would activate a boulder that acts like lawn mower for both - plants and zombies - but then those lanes would be totally protected. Maybe there is plant boulder and zombie boulder that kills plants or zombies only respectively. But again, you could plant puff-shrooms on them and kill zombies. If zombies would kill themselves by stepping on those tiles instead, it'd be even easier :/

As for flame traps - zombies that step on would be killed by fire and same goes for plants but zombies wouldn't be able to go over it and reach your brains :/

Maybe those traps could appear and disappear like chinese power tiles.