A simple yet challenging platformer with great art and solid music as well. I do agree with some of the other comment saying that it could be pretty tedious. Specifically some of the platforms moving really slowly makes the punishment for dying pretty brutal. Having to wait 10-15 seconds for a platform to come to me each time I die can get a little frustrating. My only other critique is that it would have been nice to have a little more control over the jump height. On what I'll call "level 2" (being the second from the left), You start near the top of the screen and have to jump on a platform as it moves towards you. I kept overshooting/undershooting because I was forced to jump at max height and couldn't see where I was going.
I probably played for about 30 minutes tried all 4 levels, beat 2 of them, and came extremely close to beating the one on the far right. Overall though, I had a lot of fun playing this game and think that the four of you that worked on this should be very proud of what you made for your first game jam. Great Job!