@noeabe wrote:
I know the strategy.
It really is RNG because you have to hope for 2 gargantuars on all lanes to kill Zomboss fast enough.
Otherwise he releases black bulls and more stronger zombies.
No, big gargs should NOT be the only attacking force, if the strategy is to use big gargs only to kill Zomboss, then no wonder you would find this level difficult, please read the 101 tips and watch the video on that link, it is the other zombies, the chicken wrangler and his chickens that deal more damage over time.