★A blue whale's tongue can weigh as much as an elephant.★The 'new car smell' is made of dozens of chemicals off-gassing from the interior.★A blue whale's heart is roughly the size of a small car.★Elephants are the only mammals that can't jump.★There's a species of jellyfish that is immortal.★Polar bears have black skin under their white fur.★Goldfish can recognize human faces.★Pteronophobia is the fear of being tickled by feathers.★The Mona Lisa has no eyebrows or eyelashes.★Pigs can't look up at the sky without rolling over.★Horses physically cannot vomit.★The Great Wall of China is not visible from space with the naked eye.★Sloths only poop about once a week.★There is a village in Norway called 'Hell' that freezes over every winter.★Peanuts aren't nuts, they are legumes.★The Hawaiian alphabet has only 13 letters.★Pineapples take about two years to grow.★Your stomach gets a new lining every 3 to 4 days, otherwise it would digest itself.★If you lift a kangaroo's tail off the ground it can't hop.★Octopuses have three hearts and blue blood.★Cats can't taste sweetness.★A group of crows mobbing a predator is literally called a 'murder patrol'.★There are more possible iterations of a game of chess than atoms in the observable universe.★Banging your head against a wall for one hour burns 150 calories.★Sharks existed on Earth before trees did.★Ancient Egyptians slept on stone pillows.★7% of American adults believe that chocolate milk comes from brown cows.★Cashews grow on the outside of a fruit, not inside a shell.★Antarctica is the only continent without native reptiles or snakes.★The first oranges weren't orange, they were green.★Snakes can help predict earthquakes.★A jiffy is an actual unit of time: 1/100th of a second.★A group of owls is called a parliament.★Humans share 60% of their DNA with bananas.★Scotland's national animal is the unicorn.★The inventor of the Pringles can is buried in one.★The fear of long words is ironically called hippopotomonstrosesquippedaliophobia.★Honey never spoils. Archaeologists found 3000-year-old honey in Egyptian tombs that was still edible.★A snail can have up to 25,000 teeth on its tongue.★The French language has 13 different words for 'kiss'.★Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid.★A day on Jupiter lasts only about 10 hours.★Ostriches can run faster than horses.★Tigers have striped skin, not just striped fur.★A group of ferrets is called a business.★The shortest war in history lasted 38 to 45 minutes between Britain and Zanzibar.★A newborn kangaroo is about the size of a jellybean.★Google processes more than 8.5 billion searches every single day.★The oldest 'your mom' joke was discovered on a 3,500 year old Babylonian tablet.★It takes about eight minutes for sunlight to reach Earth.★A group of porcupines is called a prickle.★Your nose can remember 50,000 different scents.★Humans blink about 15 to 20 times per minute.★The average person spends six months of their life waiting for red lights to turn green.★A hippo's sweat is pink.★Pigeons can recognize themselves in a mirror.★Cotton candy was co-invented by a dentist.★Voice actors for Mickey and Minnie Mouse got married in real life.★Koalas have fingerprints nearly identical to humans.★The longest recorded flight of a chicken lasted 13 seconds.★Barbie's full name is Barbara Millicent Roberts.★Dolphins sleep with one eye open.★You can hear a blue whale's heartbeat from more than two miles away.★A snail can sleep for three years straight.★The average person walks the equivalent of three times around the world in a lifetime.★Nintendo was founded in 1889 as a playing card company.★In Switzerland it is illegal to own just one guinea pig.★A bolt of lightning is five times hotter than the surface of the sun.★Crows can recognize human faces and hold grudges for years.★Bananas are berries, but strawberries are not.★Hot water freezes faster than cold water. This is called the Mpemba effect.★Sea otters hold hands while sleeping so they don't drift apart.★Saturn would float if you could find an ocean big enough.★A group of flamingos is called a 'flamboyance'.★The first computer mouse was made of wood.★The Dutch were once the tallest people in the world.★The smell of rain has a name: petrichor.★The longest hiccuping spree lasted 68 years.★The moon has moonquakes.★Dragonflies have been around for about 300 million years.★Chewing gum while you chop onions helps keep you from crying.★There are only two countries in the world whose names start with 'The': The Gambia and The Bahamas.★Octopuses can taste with their arms.★Cows have regional accents, they moo differently in different areas.★An octopus has nine brains.★The human brain uses about 20% of the body's total energy.★The Statue of Liberty was originally intended to be a lighthouse.★A flock of crows is known as a murder.★A 'jiffy' is one trillionth of a second in physics.★A day on Mercury lasts 59 Earth days.★So far, two diseases have successfully been eradicated: smallpox and rinderpest.★Most 'silver' spoons are actually made of stainless steel.★Starfish can regenerate their lost limbs.★Rats laugh when tickled.★Cherophobia is an irrational fear of fun or happiness.★The dot over the letter 'i' is called a tittle.★We have mapped more of Mars than of our own ocean floor.★The first item ever sold on eBay was a broken laser pointer.★There are more stars in the universe than grains of sand on every beach on Earth.★Vincent van Gogh only sold one painting during his lifetime.★Your tongue print is as unique as your fingerprint.★It is physically impossible to hum while holding your nose.★Bees can recognize individual human faces.★Avocados are toxic to most animals except humans.★Sea cucumbers breathe through their butts.★The smell of freshly cut grass is actually a plant distress signal.★A group of pandas is called an embarrassment.★Humans are the only animals that blush.★A rhinoceros' horn is made of keratin, the same stuff as hair.★A group of jellyfish is called a smack.★A 'moment' was medieval unit of time equal to 90 seconds.★Wombat poop is cube-shaped.★A group of frogs is called an army.★The Eiffel Tower can grow up to 6 inches taller during summer.★Dolphins have names for each other.★Cows have best friends and get stressed when separated.★Hippos can't actually swim, they walk along the riverbed.★A shrimp's heart is located in its head.★The shortest commercial flight in the world lasts just 57 seconds.★Bananas are curved because they grow towards the sun.★29th May is officially Put a Pillow on Your Fridge Day.★The world's oldest known recipe is for beer.★A cloud can weigh more than a million pounds.★A lion's roar can be heard from up to 5 miles away.★Bubble wrap was originally invented as wallpaper.★The microwave oven was invented by accident when a researcher noticed a chocolate bar melted in his pocket.★Ketchup was once sold as medicine in the 1830s.★More than half of all people alive today have never made a phone call.★A hummingbird's heart can beat up to 1,260 times per minute.★A newborn panda is smaller than a mouse.★Sloths can hold their breath longer than dolphins can.★There are more than 1,000 chemicals in a cup of coffee.★A day on Venus is longer than a year on Venus.★Butterflies taste with their feet.★A crocodile can't stick its tongue out.★A mosquito has 47 teeth.

★A blue whale's tongue can weigh as much as an elephant.★The 'new car smell' is made of dozens of chemicals off-gassing from the interior.★A blue whale's heart is roughly the size of a small car.★Elephants are the only mammals that can't jump.★There's a species of jellyfish that is immortal.★Polar bears have black skin under their white fur.★Goldfish can recognize human faces.★Pteronophobia is the fear of being tickled by feathers.★The Mona Lisa has no eyebrows or eyelashes.★Pigs can't look up at the sky without rolling over.★Horses physically cannot vomit.★The Great Wall of China is not visible from space with the naked eye.★Sloths only poop about once a week.★There is a village in Norway called 'Hell' that freezes over every winter.★Peanuts aren't nuts, they are legumes.★The Hawaiian alphabet has only 13 letters.★Pineapples take about two years to grow.★Your stomach gets a new lining every 3 to 4 days, otherwise it would digest itself.★If you lift a kangaroo's tail off the ground it can't hop.★Octopuses have three hearts and blue blood.★Cats can't taste sweetness.★A group of crows mobbing a predator is literally called a 'murder patrol'.★There are more possible iterations of a game of chess than atoms in the observable universe.★Banging your head against a wall for one hour burns 150 calories.★Sharks existed on Earth before trees did.★Ancient Egyptians slept on stone pillows.★7% of American adults believe that chocolate milk comes from brown cows.★Cashews grow on the outside of a fruit, not inside a shell.★Antarctica is the only continent without native reptiles or snakes.★The first oranges weren't orange, they were green.★Snakes can help predict earthquakes.★A jiffy is an actual unit of time: 1/100th of a second.★A group of owls is called a parliament.★Humans share 60% of their DNA with bananas.★Scotland's national animal is the unicorn.★The inventor of the Pringles can is buried in one.★The fear of long words is ironically called hippopotomonstrosesquippedaliophobia.★Honey never spoils. Archaeologists found 3000-year-old honey in Egyptian tombs that was still edible.★A snail can have up to 25,000 teeth on its tongue.★The French language has 13 different words for 'kiss'.★Cleopatra lived closer in time to the Moon landing than to the building of the Great Pyramid.★A day on Jupiter lasts only about 10 hours.★Ostriches can run faster than horses.★Tigers have striped skin, not just striped fur.★A group of ferrets is called a business.★The shortest war in history lasted 38 to 45 minutes between Britain and Zanzibar.★A newborn kangaroo is about the size of a jellybean.★Google processes more than 8.5 billion searches every single day.★The oldest 'your mom' joke was discovered on a 3,500 year old Babylonian tablet.★It takes about eight minutes for sunlight to reach Earth.★A group of porcupines is called a prickle.★Your nose can remember 50,000 different scents.★Humans blink about 15 to 20 times per minute.★The average person spends six months of their life waiting for red lights to turn green.★A hippo's sweat is pink.★Pigeons can recognize themselves in a mirror.★Cotton candy was co-invented by a dentist.★Voice actors for Mickey and Minnie Mouse got married in real life.★Koalas have fingerprints nearly identical to humans.★The longest recorded flight of a chicken lasted 13 seconds.★Barbie's full name is Barbara Millicent Roberts.★Dolphins sleep with one eye open.★You can hear a blue whale's heartbeat from more than two miles away.★A snail can sleep for three years straight.★The average person walks the equivalent of three times around the world in a lifetime.★Nintendo was founded in 1889 as a playing card company.★In Switzerland it is illegal to own just one guinea pig.★A bolt of lightning is five times hotter than the surface of the sun.★Crows can recognize human faces and hold grudges for years.★Bananas are berries, but strawberries are not.★Hot water freezes faster than cold water. This is called the Mpemba effect.★Sea otters hold hands while sleeping so they don't drift apart.★Saturn would float if you could find an ocean big enough.★A group of flamingos is called a 'flamboyance'.★The first computer mouse was made of wood.★The Dutch were once the tallest people in the world.★The smell of rain has a name: petrichor.★The longest hiccuping spree lasted 68 years.★The moon has moonquakes.★Dragonflies have been around for about 300 million years.★Chewing gum while you chop onions helps keep you from crying.★There are only two countries in the world whose names start with 'The': The Gambia and The Bahamas.★Octopuses can taste with their arms.★Cows have regional accents, they moo differently in different areas.★An octopus has nine brains.★The human brain uses about 20% of the body's total energy.★The Statue of Liberty was originally intended to be a lighthouse.★A flock of crows is known as a murder.★A 'jiffy' is one trillionth of a second in physics.★A day on Mercury lasts 59 Earth days.★So far, two diseases have successfully been eradicated: smallpox and rinderpest.★Most 'silver' spoons are actually made of stainless steel.★Starfish can regenerate their lost limbs.★Rats laugh when tickled.★Cherophobia is an irrational fear of fun or happiness.★The dot over the letter 'i' is called a tittle.★We have mapped more of Mars than of our own ocean floor.★The first item ever sold on eBay was a broken laser pointer.★There are more stars in the universe than grains of sand on every beach on Earth.★Vincent van Gogh only sold one painting during his lifetime.★Your tongue print is as unique as your fingerprint.★It is physically impossible to hum while holding your nose.★Bees can recognize individual human faces.★Avocados are toxic to most animals except humans.★Sea cucumbers breathe through their butts.★The smell of freshly cut grass is actually a plant distress signal.★A group of pandas is called an embarrassment.★Humans are the only animals that blush.★A rhinoceros' horn is made of keratin, the same stuff as hair.★A group of jellyfish is called a smack.★A 'moment' was medieval unit of time equal to 90 seconds.★Wombat poop is cube-shaped.★A group of frogs is called an army.★The Eiffel Tower can grow up to 6 inches taller during summer.★Dolphins have names for each other.★Cows have best friends and get stressed when separated.★Hippos can't actually swim, they walk along the riverbed.★A shrimp's heart is located in its head.★The shortest commercial flight in the world lasts just 57 seconds.★Bananas are curved because they grow towards the sun.★29th May is officially Put a Pillow on Your Fridge Day.★The world's oldest known recipe is for beer.★A cloud can weigh more than a million pounds.★A lion's roar can be heard from up to 5 miles away.★Bubble wrap was originally invented as wallpaper.★The microwave oven was invented by accident when a researcher noticed a chocolate bar melted in his pocket.★Ketchup was once sold as medicine in the 1830s.★More than half of all people alive today have never made a phone call.★A hummingbird's heart can beat up to 1,260 times per minute.★A newborn panda is smaller than a mouse.★Sloths can hold their breath longer than dolphins can.★There are more than 1,000 chemicals in a cup of coffee.★A day on Venus is longer than a year on Venus.★Butterflies taste with their feet.★A crocodile can't stick its tongue out.★A mosquito has 47 teeth.

Battle stair

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Build a four-character party and fight as a full squad.

Best streak on this device: 0

How to play Battle stair

Pick a class and name your hero, then choose the soft trail for lighter foes or the rough trail for bigger rewards and meaner swings. Each fight is turn based: basic attacks chip away at foes, spells spend limited charges, and tonics restore a chunk of HP if you have bottles. When the last foe falls you collect gold and XP, maybe a bonus tonic, then visit the shop to buy gear, refill spells or stock up before you pick the next trail.

Tips

Rough trail scales harder but pays more gold and XP, ride it when you feel tanky
Armor raises max HP and your block stat, so it helps Spark and Attack indirectly by keeping you alive
Watch your spell charges, only some classes learn magic and refills cost gold
You heal a bit each time you level, try to level before you spend tonics
If two foes show up, focus one target before spreading damage around

About Battle stair

Battle stair is an original mini RPG made for quick breaks. The layout borrows the cozy look of pixel remaster-era JRPG battles without copying any trademarked monsters, music or art. Every enemy name is made up, every background is a simple gradient forest from our own drawing code, and there is no scripted story, only stairs, classes and the question of how long your run can last.

More adventure games

Hero of Mediocria: A bored teen, a stolen WiFi router, a sword. Whack monsters, save your show.
Daily dungeon door: Open one door per day. Collect loot, build your hoard, keep your streak.
Click quest: Short choose-your-own-adventure. Wild choices raise your chaos score.

Browse the full arcade →

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