Love the concept, the main problem was that sometimes you don't jump. It kind of reminds me of this video "Clone Blocker" by Corridor

Hey, pretty cool game idea, but very buggy. I made it past the first two levels, but it took me way too many tries. The biggest problem is that the jump button doesn't always work, which led to me just walking off the edge half the time. There were too many jumps on level 3 for me to want to try and beat it.

There's also an issue where jump height will vary randomly, and I think that's probably because you're using force for the jumps. I had this same problem, and the easiest solution was to set velocity instead of using force. It's probably looping through your code multiple times before you leave the ground and adding the force you set multiple times. I'm not a coder by the way, so take this with a grain of salt.

I felt like the timer adds an unnecessary sense of urgency, and for puzzle games, I'd rather take my time to figure them out. Unfortunately, in this case, it also makes the game unnecessarily frustrating due to the buggy jumping mechanics.

It would have also been nice to have a level restart button, as a single mistake can ruin the rest of the attempt, but you still have to go through it as far as I'm aware. If I remember correctly, falling off the edge resets the attempt, but a button would have been nice.

Overall, the design of "Chrono Clone" is really cool, and it's impressive for being made in a week, but I'm sad to say that its core mechanics are way to buggy to be fun right now. Given more time, I'm sure you could make this awesome. Good luck in the future, and congratulations on submitting a game on time; I'm fully aware of how difficult that is now haha.