This was a nice little puzzle game, but the mechanics were often a bit unclear to me. The H button helped a lot, but even then there were some levels where I got stuck. Often I still missed or misunderstood an important game mechanic (for example, I thought that after the timer ended the whole level would reset, but apparently buttons you pressed stayed turned on). That being said, I think many of the puzzles were quite clever and well designed!

You mentioned this was the first gamejam game you uploaded, so with that in mind I think you did an amazing job! Congratulations on publishing something :D I also really liked the minimalist artstyle you used. It is simple, but it is beautifully cohesive. I hope the feedback does not get you too demotivated and that it can help you improve for next time :)

I really enjoyed some of the levels! Others were a bit more hit or miss. I didn't quite understand the game at first but I figured it out eventually using 'H'. I noticed you said that you had some play testers and some advice I have with that is try and have at least 'blind' play tester, who hasn't seen the game yet, and doesn't know how it works, and then tell them as little as possible. That way you get a perspective of what people online will see and understand of your game when they first see it. I know this because my only previous game jam had my brothers as play testers too, and they understood it because I told them how it worked, but then no one online understood how it worked and it can be a really disheartening feeling, especially if you've put a lot of work into it and it is a good concept, just a little underexplained. I hope this advice isn't unsolicited, my intentions are good. Keep up the good work!