PVZBTS Simulation Z

Simulation Z is the Sixth area of Plants Vs Zombies: Breaking the System.

Overview
Prepare to go deeper to a Zombified mockery of suburbia where nothing is guaranteed. Just keep an eye of the sky because Simulation Z is unstable. Quick thinking and improvisation will be required to win the battle this day.

Appearance
The world has a dark urban appearance similar to Zombopolis. The ground itself is a lit up like a disco floor with several various zombie themed stores in the background. All of these however, are in direct contrast to the dark purple sky. Finally, parts of the sky light up when it drops a plant or zombie on a tile either green for a plant, or a lighter purple for a zombie.

Mechanics
The simulation has been made unstable as a result of the plants fighting back. Both plants and zombies regularly appear out of nowhere when beams of light come from the sky to touch the tiles. This process also kills whatever plants or zombies that were on the tile the light touched, so you won't want to invest in very expensive plants unless you know where the lights will strike.

Special mission
Beghouled returns from PVZ2. Match 3 or more plants to accumulate sun all while defending your lawn. Sun can be spent to upgrade your plants. Match the allotted number before zombies get to your house to win.

World items

 * After completing day 14, you find the fourth survivor's trail.
 * After completing day 15, you rescue the fourth survivor and get an encryption key.
 * After completing day 18, you unlock an upgrade that doubles the reward for unused lawnmowers.
 * After completing day 22, you get the survival challenge Simulated Sorrow.
 * After completing day 25, you unlock the fifth 3 levels of vase breaker.
 * After completing day 30, you unlock the Simulation Z security card.