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Diary - Qrostar
Jelly no Puzzle
Hanano Puzzle
Other Stuff



Ruby and RMagick help me draw pipes.


Special green bars...


>Does the Android version of Jelly no Puzzle include the removed levels 38-40 from the PC version somehow?

No... They are too complicated so I thought they shouldn't be included even in the Android version.

>Hello, I am a highschool student currently working on my culminating activity for grade 12 and I was wondering what your process was for developing your puzzles. Do you work backwards from the solution to the beginning or do you simply have a beginning and end and work it out yourself? Excited to hear back

In most cases, I first try to come up with the core procedure of the solution that are necessary for solving the level but are not very intuitive at first glance. And then I try to hide it even more by adding several elements to the level. I also remove unnecessary elements as many as possible to make it looking easy.

>do you have plans to make more games?

Yes! I'm currently working on a new game.

>Hello, I have recently discovered Jelly No Puzzle. Was wondering whether to play it on PC or my super-comfortable smartphone, when I noticed a tweet from Braid's author saying the mobile version is of inferior quality. My question is: why not include, without any changes, the original acclaimed levels? This looks a mystery to me.

I think there are some misunderstandings. The Android version includes all the levels from the PC version (though a couple of levels needed a few changes so that some buttons can be placed at the corners of the screen). Besides, the Android version has additional 30 levels. So the things might be opposite. The PC version could be considered to be inferior to the Android version.


Sorry for not writing replies to the messages for so long. It's been more than one year and a half...

>I love the game but just cannot see how to do lev 14 falling stars!
>This is on the android version. Has anyone cracked this? I move3d on and did lev 15 quite quickly but 14 is just impossible!

Hint: Make an upside-down L shape of red jellies and hook it on the black block.

>I completed Hanano Puzzle.
>Great game !


>I love Jelly no Puzzle.
>Have you tried making a mechanic, where you have white blocks that don't need to be combined, but that also temporarily break any bonds of jellies in direct contact to them?
>I have completed the PC game but I haven't completed the Android version yet, so I don't know if something like that is in the game already.
>Take care!

I thought of a couple of rules that break bonds of jellies but I at last didn't use any of them. I thought that separating off jellies would increase the complexity of levels too much.

Thank you!



Thinking of new puzzle ideas...


BitSummit was very exciting! There were many interesting games. People seemed to have a lot of fun playing our game. Also I was glad that some people told me that they had played and enjoyed Jelly no Puzzle before. Thank you for all who came to see our game!

>Congratulations to you and Jelly Crew with the Android version of Jelly no Puzzle!

Thank you for writing the article about Jelly no Puzzle at that time (if you are that editor)!


We are exhibiting Jelly no Puzzle in the indie game event BitSummit. (The first day has been done! There were many interesting games. I was very excited.) The event is taking place at Miyakomesse in Kyoto. It will be open for the public on 8th (tomorrow) and 9th (the day after tomorrow) with the entrance fee 500 yen. The details can be found on Kyoto's event introduction page.


Mass-production jelly. Getting used to drawing them. About 30 minutes for one jelly.

>Thanks for the response! I'm glad at least an iOS port is being thought about. The iOS gaming community is far bigger and the app store for games is more popular than google play. You might find more success if you do decide to port to iOS.

We will discuss this possibility again in good time. Thank you!


Preparing new levels.

Started Twitter. But I'm not sure if I can keep using it. (Username: @qrostar)

>Are there any plans to port this to iOS now that the Android version is complete?

I'm glad that there are people who expect an iOS port of Jelly no Puzzle. But we still don't have specific plans for that. Our top priority is to make the Android version succeed. The download number of the Android version is still not as high as we expected.

We still have plans for several updates and additional levels for the Android version. At this time, we just need to put more effort on the Android one.


We are attending an indie game event, BitSummit! As a joint team of Qrostar and Jelly Crew.

The event will take place at Miyakomesse in Kyoto, and will be open for the public on March 8th and 9th. Over 100 development teams will be showing their games at their display booths. The details can be found on the official website and the introduction page provided by Kyoto, though the information for the public may not be a lot yet.

We will display the Android version of Jelly no Puzzle there. Though we will attend the event as the joint team, I (Tatsunami) am the only one in the team who is coming to the event. Some friends will help me with managing our booth.

Many famous and key persons in the Japanese indie game scene are coming to the event. There will be a lot to see! I'm very excited also as one of the indie game fans!


It may be interesting that similar levels have different solutions. I'm making several such pairs. For example the following two.

Of course, neither can be solved in an intuitive way.


I was busy recently, but now I'm (almost) free!
Sorry for not responding to the comments for a while.

>I like your game very much (I am on level 17). It is brilliant.
>Do you have it on android by any chance?

Thank you for playing the game. The Android version is now available!

>Thanks for making this amazing game. I am certainly buying it on android when you finish to support you. I hope the game is a great success so you can hire someone to put it into playstation mobile. I also hope you earn enough to be able to make more games.

Thank you! I hope it will succeed. Otherwise I'll feel guilty towards those who worked on the porting with me.

... Since my previous pc broke down, I first need to start with setting up the environment.


The Android version of Jelly no Puzzle has been released. Enjoy!

After the release of the original version, it has been played by much more people than I expected, and was finally made into such a wonderful thing! I'm so glad.

This Android version was developed by a team in Sweden, Jelly Crew. Several new levels and features were added to the game. The first 10 levels can be played for free and all the remaining levels are available as a single Google Play in-app purchase.

What I mainly did is make new levels. I put a lot of efforts into them, like I did for the original game, so it should give you a certain enjoyment.

Some levels need a bit more test and so not all the levels have been included in the game yet. They will be added along with updates of other parts of the game.

Here you can download the game:

[ The Android version of Jelly no Puzzle (the app page on Google Play) ]

Here is the website of the dev team:

[ The website of Jelly Crew ]

I hope you'll have fun playing it! Woohoo!


>I played Jelly no Puzzle and liked it enough to show my mother and father. Now my mother is bugging me to find her more games like it now that they beat it! So if you have suggestions for other good puzzle games...

These are ones I recently played and found very simple but very challenging and fun to play.

- Frost
- Puzzles

>Just finished jelly no puzzle, it's the best puzzler I have ever played, by far.
>You did a great job on gameplay, as well as keeping the graphics simple but appealing. I encourage you to develop more games, maybe port them to mobile phones, you could become really popular!
>I wish you the best and good luck with all your future projects!

>I loved Jelly no Puzzle, are you working on anything new?

Thank you for playing! I'm working on an Android port.

>Have you thought about porting Jelly no Puzzle and Hana no Puzzle to PlayStation Mobile? It is free to release games on there now and I would love to play these on Vita!

That's very interesting, but I don't have time and knowledge to do that.


This is a little while ago, but a character in Jelly no Puzzle was included in the Special Edition box art of Indie Game: The Movie.

>I just started playing Jelly no puzzle and I'm having a lot of fun. Every other level I think that this must be impossible. But I know that I thought that many times before, so I must be overlooking something, haha.
>Making the levels must be way harder than solving them, I'm so impressed! The music and graphics are also very cute.
>Like many others said before, I think this game could be played on a smartphone much better than on pc.

Thank you, I'm glad you're enjoying the game! An Android version will be released soon.

>This is a great game, my 3 year old son really love playing it. He likes moving around the jellies, and actually solved the first puzzle. Great and HARD puzzles.

Thank you for playing the game. Your son will become a super genius puzzlesolver.


Sorry for the long time no update. I will write replies to the comments in order. And sorry I may not be able to write an immediate response to your new comment for the time being.

>I am so impressed with Jelly no Puzzle. You've made a great game! As I'm a curious developer, I opened your data folder just to take a look around at your resources. I was totally surprised when I opened up j0.png. The layout of the sprite-sheet implies that to draw a single pink block, you have to do a fair amount of image manipulation. I've never seen a sprite sheet like this and I'm curious if you could speak about how you dynamically cut this up for use in the game. Thanks!

That jelly animations are just done by a kind of a simple physical simulation. I will skip the details, but each jelly block consists of a number of particles connected with each others with springs and dashpots. Their physical actions are simulated and those jelly images are drawn as polygons using the positions of the particles.

>Just finished 40, hell yeah!
>I must say I really enjoyed the moments where it made "click" and you get rewarded with success. Since you seem not to accept donations, I will do my best and tell friends about this game! :)
>Keep up the great work!

Thank you for playing the game to the end! Telling your friends about the game is very thankful.

Developing an Android version. Planning to add more levels. Details at another time!