Frostbite Caves (Thymewarped)

Frostbite Caves is the 7th world in Plants vs. Zombies: Thymewarped, unlocked after beating Day 12 of Dark Ages. Frostbite Caves takes place during the last Ice Age, taking place at least 40,000 years ago due to the zombies bear features resembling neanderthals (and thus being named as such.) The player's house takes place in a cave, situated just next to a lake that's been frozen over, and next to a large frozen mountain wall and cave.
Slider tiles are ice block environment modifiers found in most levels that float on tiles with water and have a zombie hand frozen inside with its index finger pointing either up or down. This finger determines the lane the zombies that get in contact with it will go towards. (A finger pointing up means the zombie goes to the lane above it. Same mechanic applies to the finger pointing down.)
Chilling winds appear randomly during the level, partially freezing plants eventually leaving the plant completely encased in a frozen block, which renders the plant useless while also behaving similar to a tombstone. Hot Potato can melt these ice blocks to free the plant inside, and fire plants will be able to thaw it out over time with their warmth. Fire plants, ice plants and Tall-nut are immune to being frozen by the winds and the Hunter Zombie.
During the second half of the world, a "Snowstorm!" can occur as the surprise attack for Frostbite Caves. Similarly to the "Sandstorms!" in Ancient Egypt, zombies will fly directly onto the board on a tile, even behind a slider tile, then continue moving. Zombies that come in by the snowstorms are not affected by the slider tiles.
After beating Day 12 of Frostbite Caves, players will be able to travel to the Lost City and can chase Dr. Zomboss into the jungle of that time period or remain in the frozen fields of the Frostbite Caves.
Themed zombies in Frostbite Caves are immune to freeze. However, they can still be chilled and slowed.
==Game description==
Explore the frozen wastes of prehistory and chill out with the coolest zombies ever. Beware the winds or your plants will be frozen veggies.
==Order of events==
Upon beating Night 12 of Dark Ages, players can travel to Frostbite Caves or remain in the medieval period. Crazy Dave points out how they've arrived once again in prehistory, and Penny explains the ice floe mechanic.
At the start of Day 2, Penny warns the player of the freezing winds of the time period, explaining they'll leave the plants frozen, and Crazy Dave suggests they use Hot Potato to thaw the plants out.
At the start of Day 3, Crazy Dave complains about the freezing temperatures and asks Penny what they can do rather than relying solely on Hot Potato, and Penny recommends using Pepper-pult who is able to thaw out plants on his own AND attack zombies.
At the start of Day 5, Penny warns of an incoming glacier, and suggests that the player use plants to destroy enough of the glacier to where it won't be a problem, saying it might be a while for the glacier to stop being a threat.
At the start of Day 7, Crazy Dave asks why those Snow Pea aren't frozen like other plants, and Penny informs him that ice plants are completely immune to being frozen by the freezing winds and snowballs.
At the start of Day 8, Penny suggests that they bring Fire Pea along with them as her fire is useful for thawing plants, and since her attacks get stronger the more she shoots.
At the end of Day 10, Penny asks what this device is for, and Crazy Dave explains what the Coconut Spotting Station is and believes it's for a feature for the Travel Log. After the level is complete, players will be able to track down the Zombie Yeti in previous worlds.
When the player defeats Day 11's wave, a stone tablet is rewarded, the stone tablet depicts neanderthal zombie's drawing on it showing zombies around a brain. On Day 12, Dr. Zomboss writes a note speaking like a traditional caveman, stating that the player is in big trouble as his Sloth Gargantuars are coming to smash plants and bring a plague of Imps. After this exchange, the player will go on to defeat the Sloth Gargantuar and Penny theorises that Dr. Zomboss will never evolve.
After the Gargantuar wave is beaten, players will get the option to continue battling the icy winds and frozen zombies or take a trip to the humid jungle of the Lost City.
At the start of Day 15, Penny warns of another approaching glacier, and suggests they use Torchwood to heat up the projectiles of peashooting plants and other projectiles such as those fired by Rotobagas. Crazy Dave then wonders what other plants would pair well with Torchwood.
At the start of Day 16, Penny warns of the weather getting worse, warning of incoming snowstorms that might cause more problems for you and your plants.
At the start of Day 17, Crazy Dave lets Penny know that everything has been frozen, and Penny reassures him that the player will be provided with Hot Potatoes to figure things out.
At the start of Day 25, Dr. Zomboss writes a note asking if the journey the group is taking to stop him is even worth it, and asks if Penny is leading them to a trap. After the massive Gargantuar attacked is defeated, Penny disproves his theory stating that without them all of time would be lost and Crazy Dave tells Zomboss that Penny could never be a trap, since she resembles an RV and not a bear trap. Dr. Zomboss then declares that he will stop speaking in third person, then flees.
==New Plants==
* Hot Potato - Hot Potatoes melt the ice blocks they're planted on.
* Pepper-pult - Pepper-pults lob flaming peppers at zombies and keeps nearby plants warm.
* Chard Guard - Chard Guards are defensive blockers that can hurl zombies backwards.
* Fire Pea - Fire Peas shoot flaming peas down the lane and warm plants up, the more projectiles they shoot the hotter they become.
* Rotobaga - Rotobagas shoot projectiles along the four diagonals, in each direction that has a target.
* Torchwood - Torchwoods are defensive plants that turn projectiles that pass through them into fireballs that deal more damage. They also hurt zombies that attack it.
* Stunion - Stunions breathe a stunning cloud of gas on zombies that get too close.
* Hurrikale - Hurrikales push back all zombies in their lane by five tiles with a chilling wind.
* Rafflesia - Rafflesias launch three poisoning orbs that target the furthest zombie in its lane, and can spread the other orbs to other lanes
== New Zombies ==
===Normal Zombies===
* Neanderthal Zombie - Regular cave-dwelling zombie.
* Conehead Neanderthal - His mammoth horn cone makes him twice as tough as normal cave-dwellers.
* Buckethead Neanderthal - His stone "bucket" hat provides great protection from damage.
* Neanderthal Flag Zombie - Marks the arrival of a huge frosty "wave" of zombies.
* Hunter Zombie - Throws snowballs at range to slow and cool down plants until they freeze into blocks.
* Yeti Imp - Thrown over and thawed past most of your defenses, then ambles onward.
* Dodo Rider Imp - Dodo bird with an imp rider. The dodo can flap and jump over barricades as well as troublesome plants.
* Ice-Block Zombie - The ice block around him provides a great defence, but heavily slows him down. Takes double damage from fire plants.
* Sloth Gargantuar - Massive sloth skinned zombie with a case of the imps. Carries and throws three imps instead of just one.
* Troglobite - Strong zombie that can push blocks of ice across the lawn.
* Weasel Hoarder - Zombie hiding in a log with a pack of ice weasels. Weasels are released when her log is shattered.
* Ice Weasel - Once released, weasels run full speed even over ice floes to nibble your brains.
* Zombie Walrus - Creates an ice trail behind it to make zombies slide down, and makes way for Skiing Zombies.
* Skiing Zombie - Skis down ice trails left by walruses, and uses them to fly over most defences.
* Mammoth Rider Zombie - Crushes plants, imps, and critters underfoot, cannot be moved by ice trails or ice floes, and is too stupid to hypnotise.
===Endless Zone Zombies=== 
* Tuskhead Zombie - His skull-shaped bone helmet provides ice cold protection.
* Chief Hunter Zombie - A helmeted zombie that throws snowballs to freeze plants, and crushes plants with his weapon.
* Frostbite Troglodyte - Shoves a massive glacier that contains a multitude of strong zombies inside.
*Weasel Queen Zombie - Her frozen tree hideout releases tundra weasels on occasion, and releases the full nest when destroyed.
*Tundra Weasel - Once released, weasels run full speed over ice floes and between plants to claw your brains.
*Abominable Snowgantuar - His crushing ice hammer causes such a shockwave that it bounces zombies into other lanes.
==Levels==
There is a total of 25 levels and to play as well as introducing nine new plants (one of which returns from the first game, seven which return from the second game, and one of which returns from the Chinese version of the game) and fifteen new zombies.
===Adventure levels===
Day 	Plants 	Plants 	Zombies	Flags 	Notes 	Prize*
Day 	Chosen 	Available 	Zombies	Flags 	Notes 	Prize*
7-1: Frostbite Falls 	Choice 	Two 	 	 	 	
7-2: Cold Cuts 	Choice with	Three 	 	 	 	
7-3: Fire & Ice 	 	Five 
Three 	 	 	Special Delivery level 	
7-4: Frosty Imps 	Choice 	Two 	 	 	 	
7-5: Ice Wall 	 	N/A 	 	3:00 minute timer	Ice Wall level 	
7-6: Dodo Migration 	Choice 	N/A 	 	 	 	
7-7: Snowball Fight 	Choice 	Three 	 	 	 	
7-8: Ice Blocked 	Choice with	Four 	 	 	 	
7-9: Stone Cold Metal 	Choice 	N/A 	 	 	 	
7-10: Snow Way Out 	Choice without free or
sun-producing plants
except	N/A 	 	 	Last Stand level 	
7-11: Ice Spikes 	Choice 	Fifteen 	 	 	 	Note
7-12: Absolute Zero 	 	N/A 	 	 	Gargantuar battle 	Lost City key
7-13: The Ice Age 	Choice 	N/A 	 	 	 	
7-14: Rutabaga Crossing	Choice 	Four 	 	 	 	
7-15: Glacial Advance 	 	N/A 	 	5:00 minute timer	Ice Wall level 	
7-16: Area Denial 	Choice 	Three 
Two 	 	 	 	
7-17: Ice Shelf 	 	Five Five Five Five Five Five Five Five Five	 	 	Locked and Loaded level	
7-18: Prehistoric Swarm	Choice 	N/A 	 	 	 	
7-19: Crossfire 	Choice 	Three endangered 	 	 	Save Our Seeds level 	
7-20: Ice Path 	Choice 	One One 	 	 	 	
7-21: Frozen Solid 	Choice 	N/A 	 	 	 	
7-22: Primal Stampede 	Choice 	Two 	 	 	 	
7-23: The Meltdown 	 	N/A 	 	6:00 minute timer	Ice Wall level 	
7-24: Frostbite's Wrath	Choice 	N/A 	 	 	 	
7-25: Sub-Zero Storm 	 	Three 	 	 	Gargantuar battle 	Frostbite Caves Trophy
===Brain Busters===
Main article: Brain Busters
====Special Delivery====
Main article: Special Delivery
Special Delivery is a Brain Buster that is a conveyor-belt level with the plants given via said conveyor-belt. Being a conveyor-belt level, no sun and sun-producing plants will be given. It is playable on Day 3.
====Ice Wall====
Ice Wall is a Brain Buster exclusive to Frostbite Caves, featured on Day 5, Day 15 and Day 23. A glacier will slowly push towards your house, made up of ice blocks in every lane, and if they reach the end of the lawn you will lose the level. Each ice block contains random zombies that release different zombies when destroyed, similar to the Zombot Tuskmaster 10,000 BC boss fight. The glacier will push towards your house, moving one tile forwards every six seconds, but will speed up to move every three seconds when the timer reaches halfway. Plants and zombies will get crushed by the moving glacier if it's too close to them. Planting Hot Potato on the ice blocks will melt them individually, and fire plants will deal extra damage to these ice blocks as well as warm them up.
Players always receive plants on a conveyor belt, and there are no lawnmowers present either.
==== Last Stand ====
Main article: Last Stand (PvZ2)
In this Brain Buster, the player is given a large amount of sun at the very beginning to plan their defenses before launching the zombie attack. The player may also be given a number of Plant Foods to make use of during the level. Generally in this game mode, sun does not fall from the sky, and all sun-producing plants are prohibited. It is featured on Day 10.
====Locked and Loaded====
Main article: Locked and Loaded
Locked and Loaded restricts the player to using only pre-chosen plants in order to win the battle, featured on Day 17. In some levels, the selected roster may include plants the player may not have unlocked yet - in which case the player gets an opportunity to play with those plants as a demo. Locked and Loaded serves as a reference for a certain weapon in real life, where once it is armed, it should not be disarmed anymore.
====Save Our Seeds====
Main article: Save Our Seeds
In this Brain Buster, the player is forced to survive the wave of zombies and protect the endangered Rotobagas from the zombies, or from disappearing. The player will fail the level if the endangered plant(s) dies. It is featured on Day 19.
===Icebound Battleground===
Main Article: Icebound Battleground
Iceberg Battleground is Frostbite Cave's Endless Zone and it is unlocked after beating Frostbite Caves - Day 25. Players will need to keep updating their defences as the levels get harder and harder in order to survive; while also having to deal with more and more icy winds, more Snowstorm ambushes, and encountering stronger versions of previously-encountered zombies like the Tuskhead Zombie and Weasel Queen Zombie. The layout of the slider tiles changes with each new attempt, randomly changing between three specific layouts.
==Related achievements==
==In other languages==
==Trivia== 
*Fire Peashooter's name has been shortened to Fire Pea to follow the same line as Snow Pea and to be less of a mouthful.
*Five of the nine plants have had changes to their abilities and functions.
**Pepper-pult deals damage in a 1x1 radius.
**Fire Pea's projectiles can become blue then purple the longer it shoots, dealing more damage over time.
**Torchwood can now turn regular fireballs into blue fire, then blue fire into purple fire.
***He can also now turn projectiles such as Bloomerang's boomerangs, Rotobaga's rutabagas, and Red Stinger's petals into fire projectiles.
***This is to make up for the fact that he can now no longer explode when eaten.
**Hurrikale now only sends zombies back five tiles instead of all the way to the ninth column.
**Rafflesia is now not a useless plant, able to hit zombies three times or hit three zombies once and poison them.
*The basic zombie variants in this world have been renamed from Cave Zombie to Neanderthal Zombie.
*Blockhead Zombie has been removed from the game entirely due to it being just another copy of Knight Zombie and being introduced in a world that takes place just after Dark Ages where Knight Zombie was introduced.
*Ice-Block Zombie returns from Plants vs. Zombies Adventures in replacement of Blockhead Zombie, but really it's just a Pharaoh Zombie reskin with lower health.
*Day 19 is the first non-Gargantuar battle level to feature three flags.
*Like in the original game, Power Flame replaces Power Snow in Icebound Battleground as the third Power-Up, as it is much more effective than Power Snow.