Battleground Z (called StreetPass Zombies outside of North America) is one of fourteen sub-games in StreetPass Mii Plaza, developed by Good-Feel. It was added in the second major update on April 16, 2015 alongside Ultimate Angler and the StreetPass Mii Plaza Premium feature. In Battleground Z, the player's Mii must visit various locations in the city of Hobbiville to rid them of zombies, rescuing survivors and attaining their weapons in the process. Each level in this sub-game involves multiple missions that the player must complete in order to progress. By reaching certain milestones in Battleground Z, the player is able to earn Plaza Tickets.
Story
Battleground Z takes place in the once-vibrant city of Hobbiville, located within StreetPass County. When the player's Mii is riding the subway to shop for hobby supplies, they suddenly notice an abandoned smartphone ringing from the seat opposite them. Their curiosity leads them to answer the phone, next to which they find a mysterious vial. The person calling is Dr. Scarlet, who asks the Mii if they are "impressively well-armed" and urges them to find a weapon immediately amid the recent and overwhelming zombie invasion. Just as the player's Mii comes across a stray Wii Remote, a group of Shamblers — the most rudimentary type of zombie — somehow find their way into the subway car and begin their attack. When the zombies are defeated, Dr. Scarlet tells the player's Mii that she will attempt to create a cure for the zombie infection, though she requires help to succeed. She also reveals that the smartphone is her own, and that she lost it on the way to her father's research center. Before momentarily hanging up, Dr. Scarlet informs the player's Mii that there are survivors with unique and useful weapons based on their respective hobbies.
After safely making it to the subway station, the player's Mii begins their quest to rid Hobbiville of zombies. Here, they meet several identical Hobbiville residents who provide weapons to fend off the enemies within this level. Upon defeating all the zombies at the subway station, the player's Mii proceeds to other regions of the Downtown level, collecting various weapons along the way. To allow the Miis at the local hospital to be flown to the Stadium where it is safer, the player's Mii must rid a nearby parking lot of zombies. They must then clear the zombies from a back alley to ensure safe passage. However, the helicopter is unable to land in the Stadium until the player's Mii defeats a menacing Mega Slimebacker and collects one of four cell samples required for Dr. Scarlet's cure.
On Dr. Scarlet's orders, the player's Mii then enters the Shopping Mall level to clear out survivors in the quest to gain a second cell sample. Once all the zombies are dealt with, Dr. Scarlet learns that there is a fire in one of the mall walkways that the player's Mii is tasked with extinguishing. After the fire is put out, she also informs the player that survivors are using the mall as a base for supplies. Protecting survivors' supplies from the hordes of zombies requires defending a food cart at the mall plaza and retrieving bottles of water from the warehouse. The player's Mii must then vanquish and collect a sample from Belinda Munch, a large and insatiably hungry zombie located within the food court. When these tasks are complete, the survivors at the Shopping Mall are airlifted to the Stadium.
In the Uptown level, the player's Mii is tasked with rescuing more survivors, allowing them to access a bus system put in place by Dr. Scarlet. The tasks in this region include retrieving a lost dog, collecting fuel for the bus from the gas station, and clearing debris from the highway. The player's Mii is subsequently asked to scout around the cornfield that the highway passes through. Here, they are distracted by a row of Combustocorn in the middle of the road, allowing Bubba and Cleetus Rotts to ambush them. Fleeing in fright, the player's Mii then ends up in the middle of a field, where they must battle the two zombified farmers and collect the next cell sample.
Now in the Countryside level, the player's Mii must make their way to the power plant to collect the final cell sample and stabilize Hobbiville's power supply; however, doing so necessitates that they pass through a dangerous tunnel and subsequently defend the gates of a graveyard from zombies trying to escape. At the power plant, the player's Mii must repair four panels while fending off zombies and toggling light switches to make the glowing panels more visible. After fixing the generators, the player's Mii is required to pass through a hydroelectric dam, guarding an employee and steadily proceeding to the exit. Dr. Psymad is soon encountered at the power plant, where he is found dumping an unknown substance into the reservoir to create Voltoad. Once this boss is defeated, the final cell sample is collected, though Dr. Psymad is nowhere to be found.
The player's Mii finally arrives at the Research Center level, where a survivor is found in peril as they attempt to enter the facility. Once the player's Mii has entered the research center, they must defend the lab, preventing zombies from entering and sabotaging Dr. Scarlet's plans. Upon defeating all the zombies, the player's Mii encounters Dr. Scarlet, who is close to finishing work on her cure. In the laboratory, the player's Mii is asked to position four tanks containing components of the cure into their proper places on glowing floor panels. The player's Mii then accompanies Dr. Scarlet on the service elevator to the roof of the facility, though the both of them must contend with zombies that seek to steal the cure. At the rooftop, they encounter Dr. Psymad, and it is revealed that he is supposedly Dr. Scarlet's father in zombified form. When the player's Mii strikes Dr. Psymad, the latter resorts to releasing the zombification virus through a nearby spray machine from which Dr. Scarlet planned to dispense the cure. After releasing the virus, Dr. Psymad consumes a potion that turns him into the much more powerful Super Psymad.
Once Super Psymad is defeated, it melts into a puddle with a small alien at the center who, as it turns out, was posing as Dr. Scarlet's father all along. At long last, the player's Mii is able to dispense the cure, restoring peace and harmony to Hobbiville and allowing its residents to enjoy their hobbies once more.
Gameplay
Hobbies and weapons
Combat
Weapon durability
Slash attacks vs. smash attacks
Charged attacks
Critical hits
Rescuing survivors
Missions
Defeat all the zombies
Escort missions
Boss stages
Speed up transitions/cutscenes with right shoulder button
Levels
Downtown
Stages in the Downtown level
Image
Level
Description
Enemies
Notes
Subway Station
–
Parking Lot
–
Hospital
–
Back Alley
–
Stadium
This is a boss stage.
Stadium Showdown
This stage is unlocked once the player collects 30 Medals.
Medals in the Downtown level
Level
Medal 1 requirement
Medal 2 requirement
Medal 3 requirement
Medal 4 requirement
Subway Station
Clear within 2:00.
Don't break any weapons.
Defeat a rare zombie.
Land a 30-hit combo.
Parking Lot
Clear within 1:30.
Don't break any weapons.
Defeat a rare zombie.
Get a score of 50000 or more.
Hospital
Clear within 2:30.
Don't break any weapons.
Defeat a rare zombie.
Be a perfect guard.
Back Alley
Clear within 2:30.
Don't break any weapons.
Defeat a rare zombie.
Be a perfect guard.
Stadium
Clear within 2:00.
Don't break any weapons.
Finish with a charged attack.
Defeat all the zombies.
Stadium Showdown
Defeat 70 zombies or more.
Don't break any weapons.
Defeat a rare zombie.
Land a 100-hit combo.
Shopping Mall
Stages in the Shopping Mall level
Image
Level
Description
Enemies
Notes
Mall Entrance
–
Mall Walkway
–
Mall Plaza
–
Mall Warehouse
–
Food Court
This is a boss stage.
Food Court Showdown
This stage is unlocked once the player collects 40 Medals.
Medals in the Shopping Mall level
Level
Medal 1 requirement
Medal 2 requirement
Medal 3 requirement
Medal 4 requirement
Mall Entrance
Clear within 2:30.
Don't break any weapons.
Defeat a rare zombie.
Land a 50-hit combo.
Mall Walkway
Clear within 2:00.
Don't break any weapons.
Defeat a rare zombie.
Be a perfect guard.
Mall Plaza
Clear within 2:30.
Don't break any weapons.
Defeat a rare zombie.
Get a score of 40000 or more.
Mall Warehouse
Clear within 2:00.
Don't break any weapons.
Defeat a rare zombie.
Get a score of 40000 or more.
Food Court
Clear within 2:00.
Don't break any weapons.
Finish with a charged attack.
Feed the boss at least three doughnuts.
Food Court Showdown
Defeat 80 zombies or more.
Don't break any weapons.
Defeat a rare zombie.
Land a 120-hit combo.
Uptown
Stages in the Uptown level
Image
Level
Description
Enemies
Notes
Construction Site
–
Suburb
–
Highway
–
Gas Station
–
Cornfield
This is a boss stage.
Suburb Showdown
This stage is unlocked once the player collects 60 Medals.
Medals in the Uptown level
Level
Medal 1 requirement
Medal 2 requirement
Medal 3 requirement
Medal 4 requirement
Construction Site
Clear within 2:00.
Don't break any weapons.
Defeat a rare zombie.
Land a 70-hit combo.
Suburb
Clear within 2:00.
Don't break any weapons.
Defeat a rare zombie.
Get a score of 60000 or more.
Highway
Clear within 2:30.
Don't break any weapons.
Defeat a rare zombie.
Get a score of 60000 or more.
Gas Station
Clear within 4:00.
Don't break any weapons.
Defeat a rare zombie.
Be a perfect guard.
Cornfield
Clear within 2:30.
Don't break any weapons.
Defeat a rare zombie.
Be a perfect guard.
Suburb Showdown
Defeat 90 zombies or more.
Don't break any weapons.
Defeat a rare zombie.
Be a perfect guard.
Countryside
Stages in the Countryside level
Image
Level
Description
Enemies
Notes
Tunnel
–
Graveyard
–
Power Plant
–
Hydroelectric Dam
–
Reservoir
This is a boss stage.
Graveyard Showdown
This stage is unlocked once the player has collected 80 Medals.
Medals in the Countryside level
Level
Medal 1 requirement
Medal 2 requirement
Medal 3 requirement
Medal 4 requirement
Tunnel
Clear within 2:30.
Don't break any weapons.
Defeat a rare zombie.
Land a 100-hit combo.
Graveyard
Clear within 2:30.
Don't break any weapons.
Defeat a rare zombie.
Be a perfect guard.
Power Plant
Clear within 2:00.
Don't break any weapons.
Defeat a rare zombie.
Get a score of 35000 or more.
Hydroelectric Dam
Clear within 2:00.
Don't break any weapons.
Defeat a rare zombie.
Be a perfect guard.
Reservoir
Clear within 2:00.
Don't break any weapons.
Finish with a charged attack.
Don't let any batteries be eaten.
Graveyard Showdown
Defeat 100 zombies or more.
Don't break any weapons.
Defeat a rare zombie.
Land a 160-hit combo.
Research Center
Stages in the Research Center level
Image
Level
Description
Enemies
Notes
Research Center Entrance
–
Laboratory Entrance
–
Laboratory
–
Service Elevator
–
Rooftop
This is a boss stage.
Rooftop Showdown
This stage is unlocked once the player collects 100 Medals.
Medals in the Research Center level
Level
Medal 1 requirement
Medal 2 requirement
Medal 3 requirement
Medal 4 requirement
Research Center Entrance
Clear within 3:00.
Don't break any weapons.
Defeat a rare zombie.
Land a 120-hit combo.
Laboratory Entrance
Clear within 3:30.
Don't break any weapons.
Defeat a rare zombie.
Be a perfect guard.
Laboratory
Clear within 2:30.
Don't break any weapons.
Defeat a rare zombie.
Get a score of 50000 or more.
Service Elevator
Clear within 2:30.
Don't break any weapons.
Defeat a rare zombie.
Be a perfect guard.
Rooftop
Clear within 3:00.
Don't break any weapons.
Finish with a charged attack.
Land a 31-hit combo.
Rooftop Showdown
Defeat 150 zombies or more.
Don't break any weapons.
Defeat a rare zombie.
Land a 200-hit combo.
Enemies
Zombies in Battleground Z
Image
Name
Power
Weakness
Characteristics
Appearances
In-game description
Shambler
1/5
Slash
Just a regular old zombie. Its body is rotten and rather squishy.
Blockhead
1/5
Smash
This rock-encrusted zombie is quite a sight. Watch out for its head butts.
Muncher
2/5
Slash
You'd be surprised how fast it can jump into action when it sees its favorite food.
Putrid Punk
2/5
Slash
Used to be in a punk-rock band, but now gets its kicks launching acidic attacks.
Dynamike
2/5
Smash
A hardworking zombie known to have a very short fuse.
Rottie
2/5
Slash
Rotting hasn't dampened its spirit, but it now smells even worse when wet.
Dynamutt
2/5
Smash
Aw, it's got something! Does it want to play fetch? ...Oh. Never mind. Oh, dear.
Mushy Monster
2/5
Slash
Watch out for its acid attacks and exuberant mosh-pit antics.
Killawatt
2/5
Smash
This undead power-plant worker doesn't need coffee to feel a buzz.
Glooper
2/5
Slash
The result of a failed experiment. Looks toxic, but is actually just slimy.
Zombie Stack
2/5
–
Why on earth are they stacked up like this? Is it some sort of zombie game?
Creepy Courier
1/5
Slash
A mysterious delivery zombie. Where on earth does it get all those supplies?
Slimebacker
2/5
Slash
This former athlete is a formidable zombie. Watch out for tackles.
Mega Shambler
2/5
Slash
Huge, stinky, and squishy. Its brain is nothing but slimy mush.
Mega Blockhead
2/5
Smash
Watch out for this hard-headed zombie's incredibly powerful head-butt attacks.
Mega Slimebacker
3/5
Slash
A powerful athlete, good enough to be a starter for the Hobbiville Green Beans.
Mega Putrid Punk
3/5
Slash
Once a drummer in a punk band, this acid spitter still knows how to rock.
Mega Rottie
3/5
Slash
It's hard to tell what's worst: its bark, its bite, or its breath.
Mega Dynamutt
3/5
Smash
A massive zombie pooch with a flair for dramatic destruction.
Mega Muncher
3/5
Slash
Even though it looks about to burst, it's always ready to fit in a few more bites.
Mega Dynamike
3/5
Smash
A construction worker with a very explosive temperament.
Mega Killawatt
3/5
Smash
This zombie feels an irresistible urge to generate a surge.
Spiky Can
1/5
Smash
Watch out--those points are sharp!
Combustocorn
1/5
Slash
Well, self-popping corn sounded like a good idea at the time...
Star Quartersmack
3/5
Slash
This undead athlete used to be a star and still blows the competition away.
Belinda Munch
3/5
Slash
A former fashion model that enjoys a very indulgent life as a zombie.
Bubba Rotts
4/5
Slash
This zombie farmer has been harvesting a very strange crop out on the family farm.
Cleetus Rotts
4/5
Slash
Handles all the planting chores, and leaves harvesting to its older brother.
Voltoad
4/5
Slash
This angry amphibian was zombified by a mysterious stranger.
Dr. Psymad
2/5
–
A brilliant scientist who tried to contact aliens in his spare time...and succeeded.
Super Psymad
5/5
Slash
The ultimate form of a disguised alien who dreamed of world domination.
Rare zombies in Battleground Z
Image
Name
Rarity
Characteristics
Appearances
In-game description
Gourmet Zombie
5/5
–
A foodie that dreams of eating a giant steak in the mall plaza.
Sleepy Zombie
3/5
Slash
This sleepyhead thinks a nap in a dark power-plant room sounds fantastic.
Chatty Zombie
2/5
–
Drawn to lots of yelling when work's going on behind closed lab doors.
Party Zombie
2/5
–
A party animal that loves to crash rooftop-showdown shindigs.
Fashionable Zombie
1/5
Slash
This trendy zombie dreams of joining a back-alley fashion show.
Shopaholic Zombie
1/5
–
A total shopaholic, irresistibly drawn to fellow shoppers at the mall's entrance.
Helpful Zombie
3/5
Slash
This zombie lurks in subway tunnels and longs to see a superhero in action.
Studious Zombie
1/5
Slash
This zombie hangs out near the hospital. It wants to be a doctor and loves to study.
Money-Savvy Zombie
3/5
Slash
This frugal zombie hopes to find loose change in a mall walkway garbage can.
Cooking Zombie
4/5
Slash
This showdown chef needs a new frying pan at its food-court café.
Cleaning Zombie
2/5
–
A tidy sort that's drawn to spring cleaning at the graveyard showdown.
Gamer Zombie
4/5
Slash
This zombie finds video games and PC monitors way cooler than lab tanks.
Web-Surfing Zombie
4/5
This suburbanite loves it when online orders are delivered to its house.
Music-Loving Zombie
2/5
Slash
A tunnel dweller that loves to rock and only responds to huge blasts of music.
Movie-Buff Zombie
5/5
Slash
A film fan in the parking lot. It's keen to see a nearby movie poster reenacted.
Well-Read Zombie
2/5
Slash
A book lover in the mall warehouse. It longs to see a dragon pop out of a book.
Driving Zombie
1/5
Slash
This automotive enthusiast is drawn to S-curve turns on the highway.
Sporty Zombie
3/5
Slash
This sports fan loves to watch bowling at the stadium showdown.
Outdoorsy Zombie
1/5
–
An outdoorsy sort that'll swing by if you set up a tent at the center of a fountain.
Traveling Zombie
1/5
Slash
A gas-station attendant that's eager to take a ride on a certain mysterious bus.
Fishing Zombie
1/5
Slash
This competitive angler takes on anyone who lands a whopper at the dam.
Shutterbug Zombie
2/5
Slash
This elevator rider would love a photo of Dr. Scarlet but is too shy to take one.
Artistic Zombie
2/5
Slash
This artist loves to see lots of outdoor painting at the suburb showdown.
Pet Enthusiast Zombie
4/5
–
This fan of robotic pets lurks in a pipe at the construction site.
Dancing Zombie
3/5
–
A zombie that likes to show off its dance movies in the graveyard.
Secretive Zombie
2/5
–
This curious zombie investigates when a tote bag is totally emptied at the cornfield.
Weapons
Weapons in Battleground Z
Image
Name
Hobby
In-game description
Power
Speed
Range
Area of Effect
Utensils
Eating Well
The colorful handles make them easy to hold on to in a fight.
3
4
3
2
Sheep Pillow
Sleeping
3
2
3
3
Megaphone
Chatting
A perfect piece of equipment when you want to stand up and be heard.
2
5
4
2
Party Popper
Partying
Nothing gets a party started quite like streamers and confetti.
2
4
4
4
Formal Wear
Fashion
3
3
2
5
Shopping Bags
Shopping
3
3
2
5
Costume
Helping Others
3
5
2
2
Pencil
Studying
Handy when you need to hit zombies and then hit the books.
3
5
3
2
Piggy Bank
Earning Money
3
4
5
1
Frying Pan
Cooking
4
3
3
3
Broom
Cleaning
A simple sweeper that can stand up to the worst messes imaginable.
4
3
3
2
Wii Remote
Playing Video Games
A unique video-game controller that can be used with one hand.
3
5
3
3
Tablet
Using the Internet
4
3
3
4
Boom Box
Listening to Music
Powerful sound in a perfectly portable package. What's not to love?
3
5
4
3
Ray Gun
Watching Movies
3
2
4
2
Pop-up Book
Reading
An epic work of fantasy, boasting fine prose and thrilling illustrations.
4
2
3
3
Go-Kart
Driving
4
4
3
3
Bowling Ball
Playing Sports
5
2
3
2
Backpack
The Outdoors
Roomy and comfortable. A smart choice when hiking through an undead wasteland.
3
4
3
1
Suitcase
Traveling
This stylish, lightweight suitcase is just what every traveler needs.
4
2
3
3
Fishing Rod
Fishing
4
2
4
1
Camera
Taking Photos
This rugged camera features a very impressive, high-powered flash.
4
5
2
2
Art Supplies
Drawing
If you like to draw, why not try your hand at painting, too?
3
3
3
3
Robotic Pet
Keeping Pets
3
2
5
1
Disco Ball
Dancing
Lights up a room with sparkles so you can dance the night away.
4
4
1
2
Tote Bag
Other
A sturdy and spacious bag. I wonder what's inside...
