Quite an unobvious idea. The puzzles, on one hand, are tricky and original, but on the other hand, they're not entirely based on logic; rather, they rely more on 'out of bounds' thinking. This might be the goal, but to be honest, even when I figured it out, it wasn't satisfying; it was more weird. Probably, some people would love it while others might just get frustrated and search for the solution. Anyway, it is an interesting game. Indeed, it would be more noticeable with at least a slightly better palette and music.

Hi! I just played your game and it was very interesting! It's probably my favorite game of this jam I've played so far. Here are some further comments:

• The main premise was creative and a good interpretation of the theme in my opinion. The idea was simple but it worked really well and created some cool puzzles. 
• I think the graphic style might hinder you from getting a lot of plays as it is not what a stereotypically high-quality game looks like. However, to me, this minimalist style worked really well and maybe even helped by making everything visually super clear. As a special mention, however, those glitchy 101010-floor were a nice touch
• The puzzles were overall interesting. I especially liked the first one, which really captured this mechanic quite well as the player needed to go out of the screen both vertically and horizontally to pass the obstacle. I agree with others though about that the log should be fully solid as all the other trees are fully solid as well
• The second puzzle in which the player needs to pass the vertical red line was not very clear to me and I had to look at the comments to figure it out after trying for a long without any progress. The problem in that puzzle in my opinion is that the player either remembers the previous interaction and immediately can do it or they don't and they will never be able to solve it because it cannot be solved by thinking only. There is no progress to be made or no amount of thinking that would allow the player to get through. And they cannot even backtrack to see the example case again. The worst thing was to me that I remembered the interaction and tried to tap my way through the bar but I used the right button instead of the down as that was the way the character was supposed to be going.
• From the area, after that, I tried to jump everywhere to find a secret location but there was no secret to be found (at least to me) even after jumping everywhere I could think of, which was a bit sad
• The puzzle in which the player jumps off from the cliff and must get through the red line in the lake was quite straightforward to realize but really painful to execute because of the spike.
• The win screen puzzle was a really fun twist. Although even getting out of there I didn't find the secret it was promising me.
• It would have been cool if as a secret I could have jumped through the start point lake to fall through the bottom of the screen to a secret area but that didn't seem to be possible either
• The checkpoint system worked well. There was enough of them and the simple sound effect combined with the flag "litting" up was already very rewarding.

Overall, I enjoyed playing the game and would have happily played a little longer if there were more content. However, already like this, it was very appropriately scoped for a game jam game. If there is something specific you would like to get feedback from, feel free to ask and I can give my opinion from the player's perspective. I would also be happy to hear your thoughts on my team's jam game if you happen to have a chance to test it at any point.

I could not figure out to how get past the second screen. I tried doing what the OP said to do but I was still stuck. I got really frustrated as it felt like I was being punished for not knowing what to do.

I like the concept of trying to find a way out of bounds. Using the screen transition to hide a solution was nice as well. Unfortunately, I couldn't find a way past the vertical red pole next to the cliff.