How many stages are there?

There are 5 stages in total. As you progress, your brother becomes faster and appears more frequently. Boss-level brothers appear from Stage 3.

How do I unlock weapons?

Weapons unlock as you clear stages. Clear Stage 2 for the Mallet, Stage 3 for the Sprayer, and Stage 4 for the King Sejong Bait.

Which weapon is the strongest?

It depends on the situation. The Mallet deals double damage to bosses, the Sprayer slows down fast skaters, and the Bait keeps multiple enemies distracted in one spot.

What happens to my HP after a stage?

Your current HP carries over to the next stage, with a 20% recovery bonus. Keeping your HP balanced across all zones is the key to winning.

How are the star ratings determined?

Stars (1-3) are awarded based on your average zone HP at the end of a stage. 75%+ HP gets you a perfect 3-star rating, while 40%+ gets you 2 stars.

When should I use Mom's Special?

Use it when 2-3 brothers swarm your room or your HP is low. It wipes out all enemies and restores 20% of your HP, turning the tide of the battle.

What is the combo timer?

Defeating brothers consecutively builds your combo and score multiplier. You must defeat the next brother within 3.5 seconds to keep the combo alive.

How do I deal with the Boss brother?

The Boss (Sister in a pink dress) has 5 HP bars, making her much tougher. Focus your attacks with the Mallet or save your Mom's special move for her.

How do I use the King Sejong Bait?

Select the bait and tap an empty spot. Nearby brothers will be distracted for 6 seconds, stopping them from attacking your items. It works best when placed far from your treasure zones.

Can I play on mobile?

Yes! It's 100% playable with touch/tap controls. We recommend playing in landscape mode and adding it to your home screen to use it like an app.

Blood Pressure Rising: Teach 'Em a Lesson

Defend My Room: Little Brother Chaos

No mercy for your little brother's provocations!

CRIME 1

💻💥😈

Formatted the college thesis I spent all night typing!

CRIME 2

💄🎨👺

Used my limited edition Chanel lipstick to draw on the wall!

CRIME 3

🍜🥢🤤

Spit in my precious secret spicy hotpot and ate it!

CRIME 4

👿🕺🤪

"U mad? Nananana~ Try and catch me, bleh!!"

STAGE 1Tutorial

STAGE 2Speed Up!

STAGE 3Rush!

STAGE 4Boss Incoming

STAGE 5Full Sprint

Win by clearing all 5 stages! (Difficulty increases automatically per stage)

※ Includes sound. Turn up the volume for a thrill!

👊

Disciplining Action

Immediate retribution with a single tap.

🛡️

Defense Strategy

Protect all 4 zones simultaneously.

⚡

Mom's Special

Wipe out the entire room when the rage meter is full.

🔥 Defend My Room — 5-Stage Defense Game

Protect your thesis, designer makeup, spicy hotpot, and idol merch! In this 5-stage defense game, your bratty little brother invades your room faster and more frequently each level. Start with a basic backhand smack and unlock the Mallet, Water Sprayer, and King Sejong Bait as you progress. Maintain combos to boost your score, and fill your Rage Gauge to summon Mom and wipe out all enemies. Since HP carries over between stages with a 20% restore, strategic defense is key. Clear all 5 stages to get your final star rating and a shareable ending card.

💡 Strategy Tips

🔨The Mallet deals 2x damage and charges the Mom Gauge twice as fast. Use it primarily on bosses.
💦Use the Water Sprayer to slow down the fast-moving skater brothers before they reach your items.
💵Place the King Sejong Bait far from your treasure zones to keep the enemies occupied for as long as possible.
⚡Use the Mom Gauge only when 2-3 brothers swarm in at once for maximum efficiency.

📋 How to Play

1
Start the Game
Tap the Start button to begin at Stage 1. You start with only your hands (Backhand Smack).
2
Tap to Discipline
Quickly tap/click on your brother running around your room. If he reaches your items (thesis, makeup, snacks, merch), your HP will drop.
3
Unlock & Switch Weapons
Clear stages to unlock the Mallet (S2), Sprayer (S3), and King Sejong Bait (S4). Switch them using the weapon panel on the right.
4
Mom's Special Timing
Once your Rage Gauge hits 100%, tap it to summon Mom. She will wipe out all enemies and restore 20% of your zone HP.
5
Clear & Survive
Keep your blood pressure stable before time runs out! HP carries over, so defend all zones evenly to conquer all 5 stages.