At first glance you see a simple platformer with simplistic visuals and an obvious interpretation of the theme, but... This is ONLY at first glance. Play this for a bit and you see 1) Creators own spin on the theme, that can break your assumption 2) very clever level design 3) nice sense of humor (the flag comming from the sky in one level is a great touch and attention to detail :D) and you can hear really nice sound effects/soundtrack. I think that if the game took a less mario style look and went for something more original, just switching the color pallete would probably work it would stand out even more.
For a first time jamming this game is extremly surprising in how nice the design is. A little more experience and polish and I can see you creating awesome experiences next year. As for now, thank you for making the game I really enjoyed it.