This is great! Just the sheer amount of puzzles you have managed to create for the jam is commendable in itself.  Loved the art direction too!

As the commenter before me said, some visual clutter can happen. My feedback, you can choose to consider for later:

• The boxes immediately move from the start, which was a bit annoying for me (although I understand some levels' mechanics are built on changing the setup mid-flow). Maybe some kind of start action would be nice, so I could survey my resources first.
• The other intentional but confusing element for me was that the streams can cross.
• I ran into a bug on one of the portal levels, where after I sent the wrong box type once, the counter hasn't accepted any more of the right ones either.

Overall, I think you could turn this into a full game anytime, and I'd expect it to perform well among puzzle-lovers. You have nailed most aspects already :)

I think this might be my favorite game I’ve played this jam, honestly. Extremely polished, creative puzzle mechanics, and a solid difficulty progression. The bonus puzzle was a nice twist on the concept, and I liked the little passcode puzzle leading up to it, too (very clever solution…!). Really well done.

For a few (small) criticisms:

• Sometimes there felt like there were slightly too many tutorial levels in each section, and only one or two real “puzzles”. Now, these tutorial levels were still generally good, and mostly not tedious, but I think sometimes it felt they weren’t teaching anything so important that it needed its own separate level. That may be somewhat up to opinion, though.
• Very occasionally, when a bunch of puzzle elements were placed very close together, things could get a little visually cluttered and take me slightly longer to mentally parse.
• I think the speed up button could speed things up even more. If I’m pressing it, odds are I’m at least 90% confident I have a correct solution, so it can be a bit annoying to have to wait a while holding it before moving on to the next level. This was most noticeable on the bonus level, for obvious reasons.
• I like that the game is split up into several discrete sections… but honestly? While playing, I almost completely forgot about that, because the game does not tell you when you’ve finished one section and moved onto the next. They just bleed into each other. I might add some kind of splash screen to let you know you’ve finished the current set of levels, before sending you back to the menu.
• There’s no progression tracker in the game right now, so if you exit to the menu at any point (as I did, closer to the end, once I realized I’d probably already gone through several sets of levels and wanted to see how far in I was), you have to just kind of guess what level you were on before you exited. You can also skip to any level at any time right now, which is perhaps not ideal. Given this game has a single, clear, linear progression, the levels should probably unlock as you go.
• Returning to the menu should return you to the level select screen, not the title screen, I think. This was only really an issue when I was working on figuring out the passcode, because that required I hop repeatedly between levels. The decently long fade transition to enter the level select screen didn’t help, there.

Those are minor issues, though. Overall, I really enjoyed my time with this. With the level of polish this already has, I think it’d actually be a pretty viable commercial release, given a bunch more levels and a few more mechanics. You’ve got something really promising here!

ts is getting top 20 i swear

Super unique and crisp feeling game. Felt sort of like that one box platformer for the DS. Some of the puzzles where a bit finnicky it felt like I was just throwing things at a wall to see what stuck, and I kept encountering a bug (at least on the web version) where the ghosts wouldn't be blue for some reason, and that really messed with my brain. But outside of that, I had a lot of fun, and it was still super rewarding to complete the vast majority of levels. Also there's a secret level??? I think it has to do with the last few numbers that showed up on the final levels, but I have no clue. Please tell me if I'm on the right track 🥺🥺   Correction: I'm an idiot

Seal of gunno approval

A high-quality, stylish, and cool puzzle game. Really impressive result for such a short timeframe — it feels complete and polished. The theme is used perfectly. Аnd that secret level? Big wow! Thanks for your work!

Great concept, lots of content, perfectly fits the theme. Kudos all around!

This game is incredible ! The puzzles are fun and interesting, and they don't feel overwhelming as the mechanics are well introduced. Played it till the last level :)

Excellent game! I kept playing till I completed all the levels, well done!

Really fun game! One of the best games I have played so far! It is a simple concept and fits the theme so well. Amazing work!

One of the best games i've rated, nice work buddy, prety unique mechanic and hard puzzles. Very cool! :)

So good! I had a blast playing this, the mechanics are simple/easy to get and the puzzles are super fun

Hey! **Great** game, well done!

such a freaking cool game, awesome exploration of the mechanics and a beautiful cohesive aesthetic. loved finding the experimental levels too, such a neat idea!!!! killed it!

Holy-, this is addictive, and very fun to IMO

Absolutely crushed the graphics and feel on this, well done yatty!!

Return to sender is a goated name 5/5 if there was a name rating. Simple and sweet puzzle game with good sound design and music. Would play this a lot :D

Such a great idea! Well done!