quite nice song.
Those mario sounds at 0:40 are quite funny but also a bit annoying though (but that does not mean you have to delete them!)
The song has a good structure and beat. overall well done!
Maybe the mastering could be a bit better. try not to push the highs too muchs. all headphone users will be greatfull for this! ;) also you have some unnecessary bass in the deep lows. i recomend you to cut the bass at 30hz that will make your drum a bit cleaner.
keep it up! :)