How to Play

Your guide to MathBattler โ€” the arithmetic battle RPG where math is your weapon.

๐Ÿ‡ฏ๐Ÿ‡ต The game interface is in Japanese, but the gameplay is pure math โ€” you're very welcome to play!

Overview

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Math-powered combat

Solve arithmetic problems (addition, subtraction, multiplication, division) to attack monsters. Get the answer right and your attack lands!

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100-floor dungeon

The dungeon has 100 floors. Each floor has 10 monsters, and the 10th is always a boss. Clear them all and push deeper!

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Three difficulty levels

โ˜…, โ˜…โ˜…, and โ˜…โ˜…โ˜…. โ˜… focuses on basic arithmetic; โ˜…โ˜…โ˜… brings harder problems and tighter time limits. Go at your own pace.

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Collect monsters

Every defeated monster is recorded in your Monster Note. Rare species roam the dungeon โ€” can you find them all?

Basic Flow

1

Start from the Main Menu

Tap the "Battle" button to head to the dungeon selector. You can also check your equipment and items here.

Main menu screen
2

Choose a floor and difficulty

Pick any floor from 1 to 100 and a difficulty (โ˜… to โ˜…โ˜…โ˜…). Floors you have cleared are recorded and saved.

Dungeon selection screen
3

Battle with math!

When a monster appears, a math problem is shown. Enter your answer on the number pad and tap the confirm button. Correct โ†’ you attack. Wrong โ†’ the monster hits you.

Battle screen background
4

Defeat 10 monsters to clear the floor!

Beat all monsters on a floor to reach the Results screen. Your clear time is recorded, and the next floor unlocks.

Battle System

Number pad input

Step 1   Your Turn (Attack)

Answer the math problem

Tap number buttons to enter your answer.
Use the โœ• button to delete a digit.
Tap the โ—‹ button to confirm and attack!

Step 2   Monster's Turn (Dodge)

Solve to dodge the attack

The monster is about to strike! Answer correctly to dodge entirely โ€” no damage taken. Wrong answer or time-up means you take a hit.

Bonus   Critical Hit!

Answer fast for extra damage

On your attack turn, answer within the time limit for a Critical Hit โ€” dealing 1.5ร— damage!

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Critical time window

โ˜…: within 5 seconds  |  โ˜…โ˜…: 4 seconds  |  โ˜…โ˜…โ˜…: 3 seconds.
The harder the difficulty, the tighter the window!

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Special Move

Dodge 4 times in a row on monster turns to charge your Special Move gauge! On your next attack turn, the number pad glows red โ€” enter your answer to unleash a 2ร— damage special attack!

Monster Types

Normal monster
Normal

Normal Monsters

The common inhabitants of the dungeon. They get tougher on deeper floors!

Heal monster
Heal

Heal Monsters

Defeat one to restore HP โ€” a lucky encounter! More likely to appear when your HP is low.

Rare monster
Rare

Dungeon Rare

Unusual monsters that sometimes appear. Defeating one may drop rare equipment!

Super rare monster
Super Rare

Super Rare

Only a 1% encounter rate. Consider yourself lucky if you spot one โ€” make sure to add it to your Note!

Boss monster
Boss

Boss Monsters

The 10th monster on every floor is always a boss. High HP and hard-hitting โ€” some even change form when weakenedโ€ฆ

Special monster
Special

Special

Mysterious monsters with unique effects. Their abilities are a secret โ€” meet them and find out!

Equipment & Items

Sword

Sword (Attack boost)

Dungeon drop / Shop purchase

Equipping a sword increases damage dealt to monsters. Find better swords as dungeon drops or buy them from the Shop. Higher floors yield stronger gear.

Shield

Shield (Defense boost)

Dungeon drop / Shop purchase

A shield reduces damage received from monsters. Even when you fail to dodge, a good shield keeps things manageable. Grab one alongside your sword!

Items

Items (usable during battle)

Shop purchase / Dungeon drop

Consumables you can use mid-battle. Keep a few in your bag for when things get tough!

Heal Orb (restores HP)
Attack Orb (up to 3ร— per monster, boosts attack)
Defense Orb (up to 3ร— per monster, boosts defense)
Spike Orb (deals damage to the enemy)
Poison Orb (inflicts poison)
Paralyze Orb (inflicts paralysis)
Stone Orb (inflicts petrification)

Tips

๐Ÿ’ก Start on โ˜…

Difficulty โ˜… focuses on addition and subtraction. Get comfortable with the flow first, then take on โ˜…โ˜… when you're ready!

๐Ÿ›ก๏ธ Use items when HP is low

Heal Monsters appear more often when your HP is low, which helps โ€” but don't rely on luck alone. Keep a Heal Orb in your bag just in case.

๐Ÿ“– Fill your Monster Note

Every monster you defeat is recorded. Try different floors to encounter all types and aim for a complete collection!

โš ๏ธ Back up your save data!

Save data is stored in your browser. Clearing browser cache or switching to a different browser can wipe it. Use the in-game backup feature to keep your progress safe.