Many players use modified files strictly for offline play to avoid detection.

Plants with cost 0 (Sun-shroom, Primal Potato Mine, Cherry Bomb) can be planted infinitely. Combine with (also 0 cost) to place 20 Cherry Bombs in 1 second. The game’s entity limit will crash before zombies reach column 3.

– Plant food a maxed Sun Bean on a zombie, get 500+ sun, then spam max-level Bowling Bulbs. Entire waves die before reaching the third column.