The Universe's First Block Action Puzzle Game, PUZZLE STAR BT21
Meet BT21 and experience this unique game on the mobile platform now!

◆ The Friends Creator's First BT21 Game Title
The universe-class cute BT21 characters meet an innovative puzzle game!
The Incredibly Creative Block Action Puzzle Game, PUZZLE STAR BT21

◆ BT21 has set off on a journey to become UNIVERSTARS.
TATA came to Earth with the AI robot VAN to become a UNIVERSTAR.
However, things haven't been easy for him...
Gather like-minded members, perform missions, and find the legendary song!

[BT21's Missions]
- Collect blocks.
- Collect Melody blocks.
- Remove Iron blocks.
- Light bulbs.
- Collect lollipops.

◆ It's not hard at all. In fact, the more you play, the tougher it'll be to stop!
Draw blocks in empty spaces and complete missions.
Clear 1 or more lines to get helpful items.
Clear lines with a variety of boosters and items, and become a UNIVERSTAR!
Draw and clear blocks! Pretty easy, isn't it?

◆ We'll stand out from the others! BT21's unique style )
The BT21 members' trendsetting fashion styles
are only available in PUZZLE STAR BT21!
Join the game and enjoy the BT21 members' unique styles.

[Secrets of BT21 Character Costumes]
- They don't just look cute.
- They also provide various abilities to help you complete missions.

◆ PUZZLE STAR BT21 is more fun when you play it with your friends!
Share your BT21 news on Facebook and make friends with other users.
Friends can exchange Hearts for the game.

What’s New

Version 1.5.2

Patch Note BT21 1.5.2

*Changes *
– Fixed minor bugs

Ratings and Reviews

4.9 out of 5
15.8K Ratings
15.8K Ratings
foreverhauntingme ,

Minor Annoyances

So I love BTS and I love this game. At first I was annoyed by the “5 lives”thing but honestly I can’t complain too much about it. It keeps me from being stuck on my phone all day and honestly the lives rest quickly. The overall design is adorable and the sounds are so cute. Even losing is adorable af. I’m already on level 90, but that’s where my issues come in. I am not here to waste real money on this game. That being said, I find it WAAAAY too difficult to get new characters or buy any of the boosters. You’re lucky is you get 60 coins a level, which sounds fine until you realize you need 800 for the gotcha. Sometimes I’m stuck on a level for DAYS and it’s not like you’re guaranteed going back a few levels and succeeding there either. Also the tutorials stopped a long time ago, meaning that even though new blocks were introduced, I didn’t get 3 free boosters to help me out. Which is fine except it’s expensive to get the boosters on your own!

My suggestion is that you let us keep all coins we made even if we fail the level. That would help tremendously and I’d be able to advance further with the character collecting and be able to actually by the boosters to help me pass the tricky levels. I mean it makes sense that you’d still get some experience even if you fail the level no?

Other than that, I do really love the game.

ManderMillz ,

An amazing game!

I got this game like 2 hours ago and I already love it so much I can't stop playing it! I was exploring around a bit because I love BT21 and this game sounded a bit weird to me at first. Then I went to go see the characters and I was clicking around and when I clicked koya I just fell literally in love with the adorable sound he made, as well as everyone else's sound. But that's not it when it comes to animation and design I am a freak to the stuff. The characters are basic but that is the best part about them! They made the movement for the characters really, really, really, really, really smooth and that's not everything the way the game just looks when you open up the app is AMAZING! I really loved BTS before then but this right here made me love them so much more! If you are reading through the reviews and you don't if to get the app, if you like BTS then this app will make you love them so much more than you already do! Trust me when I say this, this game is really good and I would like to see more people playing it!

musicalmixer ,

BT21 Is So Much Fun!!

I have been obsessed with the little BT21 characters that BTS created themselves from the very beginning! When they announced that they would be releasing a game with these characters I was super excited! And then I was actually surprised at how fun this game is?? Yes it’s basically a puzzle game, but the way they have integrated a different kind of gameplay makes it stand out from others and keeps it interesting! And even tho there is the option to use actual money to help you out in the game, I have yet to feel any need to do so which I think is pretty cool. A lot of apps will only go so far before you have no choice but to spend money to advance and it’s usually pretty early in the game- not with this one! If you like puzzle games that feature super cute characters, you won’t be disappointed with this one! ☺️


LINE Friends Corporation
682 MB

Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.



Age Rating
Rated 4+
Copyright © LINE Friends All Rights Reserved
In-App Purchases
  1. Tiny Ruby Package $1.99
  2. Small Ruby Package $4.99
  3. Once-in-a-lifetime Package $0.99


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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