Nah, bro, Stage 25 is an INSANE leap in difficulty. I'm sorry, but this is just an instance of poor balancing. The strategy you recommended doesn't even fully work because of the MULTIPLE Torch Zombies in some waves that instantly kill the Peanuts -- which is all the more likely because of all the grave spam that absorbs virtually all damage but Fume-Shrooms. You need Snow Pea to extinguish the Torch Zombies, but even then, they can still burn plants before getting extinguished.
While useful, you also can't reliably distribute your Cherry Bombs between the arguably biggest threats (Zombie All-Stars and Torch Zombies) because there are too many of them, they're spread across all 5 lanes, and there are 20 billion graves in the way.
I'm glad you made this game, but seriously, please consider rebalancing some of the stages. We're talking about just beating Adventure Mode.