PVZBTS Terabytes of the Deep

Memory Lane is the fourth side area of Plants Vs Zombies: Breaking the System.

Overview
Descend into the depths of the dangerous system in a race to ancient code! Face the zombies in a fight of aquatic fury to stop those zombies from uncovering powerful equipment that would surely doom you all! Just be mindful of the oxygen and the effects of lob-shot plants!

Appearance
The area here has light and navy blue aquamarine like stones for a lawn and plenty of bronze ruins in the background. It has a mild amount of reefs in the background as well. The water itself is a dark blue and the main air bubble is light blue.

Mechanics
First, the world is underwater meaning that plants cannot be planted outside of air bubbles. Fortunately, there is a large air bubble that covers the 3-5 closest columns to your house depending on the level. Water also turns fire attacks into normal attacks and messes with lob-shot trajectory causing it to miss.

Special mission
Power Play: You do not have access to plants, but you get to use powerups for free each with their own cooldown. But beware, white colored zombies are immune to ice, blue colored zombies are immune to electricity, and yellow colored zombies cannot be thrown. Additionally, Zomboss has "powerups" as well.
 * Speed boost: Zombies move twice as fast for 10 seconds.
 * Heal: Heals all zombies completely that you don't move your mouse/screen touch over. You have 10 seconds to do this.
 * Wither: Kills the most expensive plant on your lawn. Tapping it within 3 seconds will save it.

World items

 * After completing day 14, you find a map to an excavation site.
 * After completing day 15, you delay the zombie progress and get an encryption key.
 * After completing day 18, you unlock an upgrade that increases powerup damage by 20%.
 * After completing day 22, you get the survival challenge Depths of Despair.
 * After completing day 25, you unlock the fourth 3 bonus levels of vase breaker.
 * After completing day 30, you unlock the Terabytes of the Deep security card.

Plants
Plants here

Zombies
Zombies here

Days
Days here