Extremely zen presentation here, and the puzzles are pretty joyful to get through. Felt like I lost track of time after a while which is a really good sign for a game like this. I see from the description that this is your first time making a puzzle game and I reckon you've got a good eye for it! 

One thing I'd recommend is mapping the undo to the z key since it's usually easier to find instead of hunting for u each time I want to undo. 

Otherwise though, very elegant entry. Congrats! 

This is a great example of a perfect jam puzzle game. A core mechanic that is easy to grasp presented in a simple style. Then it is explored in an interesting way through puzzle design and then by twisting the mechanic with the new shapes. Really forces you to think ahead in the best way, but without being needlessly punishing if you fail.

Brilliant! Reallly nice work with this one.

Simple, but very elegant in its execution. I agree with the other commenters that this already feels like a solid mobile puzzle game, and that having the option to replay previous levels would be a much-needed improvement.

What I really like is how there are multiple ways to solve each puzzle once the player has two shapes to choose from. You could probably create massive custom grid designs and let people figure out for themselves if they're solvable with the given five shapes (maybe being a daily challenge of sorts, if the game does get officially published).

I also like how the five shapes sort of spell the game's title (even though the "i" shape is more L-shaped). It didn't have to be done, but it just makes the game all the more charming to play through.

really cool take on the lightbulb puzzle style of game, and super calming too! very impressively smooth difficulty ramp, i got complacent after the first few levels so it was fun to then stumble onto an incorrect solution and have to think carefully to get the right answer!

I spend so much time, it's so satisfying having loads of  "Aha!" moments!
The best thing you did is keeping it this minimalistic, great style choice

The best game in the game jam by far. Period.
I spend an hour on it without even feeling I spent a minute on it. The UI is informative, and always the U and R coming is just a nice touch. A 10/10 game if I've ever seen one.

Dude tried a new genre for the first time and absolutely nailed it. You know it’s a great puzzle game when the learning curve and difficulty increase at such a natural pace that everything just feels smooth and rewarding.

The UI is perfect and makes for a very smooth experience. Combined with the music, it creates a relaxing atmosphere, even when you get stuck on the later levels. Honestly, it helped me unwind after a slightly stressful day. Great job, and keep up the amazing work on your future projects!

Loved it! Early levels are easy but they ramp up quickly when introducing the irregular shapes, loved that. Will come back to complete the levels.

I am super curious how you designed the levels, since many of them can have multiple solutions. They play more to intuition than planning ahead, but puts them in the exact spot for them not being too difficult while enjoyable. Awesome work!

Absolutely stunning. I've played a lot of game jam games over the years, but I believe this is my favorite. It's beautiful in its mechanics, its aesthetic, its readability, its simplicity. Almost every puzzle felt so effortless and intuitive, yet impressive to solve. I audibly said "wow" many times from just appreciating the beauty in the patterns you created in your levels. I've played games in jams that have "more" of everything, but this game just feels 100% finished and explores its universe of ideas elegantly. Genuinely a triumph. If this doesn't make it into the video, it's a crime against the jam itself. Incredible job, please keep making puzzle games.

A creative twist on a "lights out" type of puzzle games. Completing levels is satisfying. It starts easy, but the introduction of new shapes and ability to rotate them ramps up the difficulty. Controls are responsive, and animations are smooth. Great game!

I would love to have it as mobile game! Easy concept, but really great execution ;)

Hee-Ho. Turbo cute and cool game. Very nice mechanics, art and sound. Thanks for good experience

Really a wonderfully made game. Simple to pick up and challenging as it gets deeper but at a pace that keeps you going. Amazing job to make this in such a short time.