When it comes to side-scrolling tower defense games, many players will mention Plants vs. Zombies. This game is an early work, but its gameplay is very classic and enjoyable, which has made it very popular among many players. Below is an introduction to the levels of Plants vs. Zombies 3. The current work still adopts a level system. There are quite a few levels with high difficulty, and many players have found themselves stuck on certain levels. Therefore, you often see people online asking for strategies for specific levels. Below, we will provide some strategies for the more frequently discussed levels.

1. Level 41
This level is a mid-game stage and one that players often mention. In this level, a new enemy, the pigeon, appears. This enemy is a flying unit. When encountering obstacles, it can also land. If there's no blockage on a path, the pigeon will fly straight through, so players need to pay attention to this. Upon entering the level, three paths will already have plants placed, serving as a tutorial. This mainly teaches players that nuts can block pigeons and make them land. Afterward, the level officially begins, with enemies initially appearing only in the middle three rows, which is an advantage.

First, as usual, plant sunflowers to collect sunlight. It's best to place the sunflowers in the last row. Once you've collected enough sunlight, plant a Chomper in the middle or front part of the first row, as enemies will soon come from the first row. Remember to place a nut in front of the Chomper, as pigeons will follow the zombies, and without the nut, they will be hard to deal with. Next, place nuts in front of all paths without nuts. Then, gradually, many pigeons will appear. As long as you hold off these two waves, you can smoothly pass the level by continuously adding more plants.

2. Level 70
This is a late mid-game level. This level features a small pond, which requires players to be careful. At the beginning, plant two sunflowers to collect sunlight, as the amount of sunlight in the early stage is very limited. So, you need to collect more sunlight. The level provides two lily pads at the start, but the initial zombies won't come from those two lily pads. You should have at least 3 units of sunlight, then place a lily pad in the middle of the pond to block the path. It's recommended to place a frozen pea shooter behind the lily pad, effectively dealing with enemies on this path. Next, place a lily pad in the water of the first path.

Since the enemies on the first path usually appear in groups, it's suggested to place a cabbage-pult at the end, making it more effective against enemies. Mainly, ensure each water path uses lily pads, as there are no nuts in this level, and pre-blocking enemies on water is crucial. Each path should have at least one frozen pea shooter and one cabbage-pult. Try to cover the water surface with lily pads. On land, place pumpkins in the front or middle positions later; they are very effective for defense or dealing with single enemies. Following this strategy, you can pass the level smoothly.

3. Level 91
This level has a circular pond in the middle. Initially, you'll get 3 lily pads each on the top and bottom. Start by placing sunflowers on the top. The amount of sunlight in this level is also limited, so focus on planting sunflowers at the beginning. Once you have enough sunlight, plant a nut at the very bottom, then place a bamboo mortar at the back of the middle. Next, place a nut at the front of the lily pads. This will buy you some time. Then, place a bamboo mortar at the end of each row, a nut in front, and a mortar or pea shooter in the middle. This setup should help you pass the level smoothly.

The above are introductions to some levels of Plants vs. Zombies 3. Due to the limited space of the article, only three levels that players frequently mention are introduced. Each level has different terrain, and players need to use the given plants flexibly to pass the levels successfully.