Wow...
The best thing about this one is how the game is so, so subtle with how it guides you through the levels, it's not explicit, it's leading you through a trial and error but with giving you very very subtle hints that you may not be even aware of. While it's just a small simple game, that's peak level design. Great feeling for the player, this is the feeling what people should always try to get. Standing ovation and hats off to you for that.
I found it kind of easier to go through odd-input levels, as you could go with little steps without considering the level layout that much, so I felt like I was kind of exploiting the game a little, but that was still very fun and don't get me wrong, some of the levels blocked this way of doing things halfway through leaving me with defunct strategy and having to adapt (which is awesome in it's own way!)
I am in no way fan of pixel art, but the art is really good and it serves it purpose really, really well, fits with everything and so on.
It started to feel a little bit tedious after a while, but the game ended before my attention started to drop, so that's great.
When considering jam environment, this is one close to perfect (not there yet, but very high all across the board).
I feel like I might be a little bit over-positive, but dang it, voting is subjective, and I just feel very positive about this one.
Great job, and one more time, hats off.
Keep designing games, please.