Not bad
It helps that I'm a big fan of that Super Mario World music. Yes it is true this was fairly short but it helps that it is a good subject matter. I thought it was cool to use another pixel version of Mario in contrast to the land pixels (the environment). How the screen was used was also pretty impressive. The icing on the cake was him still shooting Mario after the credits. It does still need work with a longer time and some more action, but it works alright for what it is supposed to be.