Talk:Sky City/@comment-31763339-20170720073533/@comment-11660317-20180519060933

If you did accidentally unlock it first, PvP Mode is there to help though.

Anyway, it's hard because right from the first levels, you'll meet the Zombie Fighter, which is incredibly annoying cuz they attack continously. Other planes kill flying plants instantly (and even zombies from Magic Mushroom's PF) and crashes into your house which deals huge damage. And the darn Imps from Garg and Transport Boat - while Rotobaga's the only flying plant that can attack zombies in the back they're not even that useful. And the lightning mechanic, incredibly hellish mini-games (except One Gun Guard, which is ironically the easiest one in the whole series lmao) and the hardest boss in the series.