I just played your game, it took me forever to actually figure out how to open the file. Because your build mac with a windows, this cause some kind of error caused me to not be able to try it. Next time I suggest you build a HTML version with unity. This way a lot more people can play your game. And give you feed backs. https://stackoverflow.com/questions/50577473/unity-game-compiled-in-windows-does... this is the I use to figure out how.
My thought on your game is that, it was a bit odd, like first time when I move jump twice I see it move in the future, but other time is just not move. Your idea was neat, if you make it like easier to see what happen in the future right after the player get the red box into the red box goal, and make the same move with the yellow one. Most of the time is just kinda stuck not moving, and the clock spins and the number grows and I don't know what it meant. Yeah, overall the concept is really good, you could polish it a bit more. I really like the concept, I had thought about similar idea for the jam also. But we went for a different direction. At least you made something, and it is finish and done. Well done. And good luck.