Modern Day - Day 21 is the twenty-first level of Modern Day in Plants vs. Zombies 2. In this level, All-Star Zombie is introduced and it includes portals from Ancient Egypt, Big Wave Beach, and Neon Mixtape Tour. After completing this level, the player receives a money bag.
The All-Star Zombie is a dangerous zombie, as it charges through the player's lawn at a flighty speed. If it manages to touch any of the player's plants, it can tackle and possibly kill them with the equivalent damage of a Gargantuar's smash. It later slows down at stiff speed after tackling a plant. It also has dense health, meaning that it can be considerably hard to kill, and can act as a defensive shield to zombies behind it.
The portals in this level also pose a threat to the player's defenses. Neon Mixtape Tour portals can spawn the MC Zom-B and Breakdancer Zombie. MC Zom-B immediately kills non-defensive plants around itself, while Breakdancer Zombie kicks dangerous zombies in front of the player's plants. Ancient Egypt and Big Wave Beach portals also spawn and can have dangerous zombies such as the Pharaoh Zombie, Octo Zombie, and Surfer Zombie.
- The small number next to the zombie icon means that zombie will always appear in that lane, with 1 being the topmost lane and 5 being the bottommost one.
|Waves||Non-dynamic zombies||Ambush zombies||Note(s)|
|2||1 3||None||100% Plant Food|
|4||2 5 4||None||First flag|
|5||1 3||None||is spawned at row 3, column 6|
|6||2||None||100% Plant Food|
|7||1 2 3 5 4||None|
|8||3 2 4||None||Second flag; is spawned at row 4, column 4|
|9||2 3 4 1 5||None|
|10||1 5 1 5||None||100% Plant Food|
|12||2 4 1 5 3||None||Final flag; is spawned at row 1, column 5; is spawned at row 5, column 4|