not bad dude.
even though the end just kinda stops, it actually is a cool pause to make it loop well. the bass kick sounds pretty nice here. i would try editing the actual "wah wah" sound a bit though. i know it's based off of video games and you have this sorta chip tune thing going on, which i think mixing chiptune with dubstep is a pretty awesome idea that you should role with, I feel as if the wah wah sounds a bit "too" 16 bit. the wah is the part that stands out the most so you want it to sound perfect.
also, i would try maybe adding a few more instruments, like maybe some sustaining violins at 1:56 would be cool if it followed the same sorta pattern as the bass line that you got going in the background.
remix's are sweet dude, but i think to really stand out you should try making a chip step original. look up the artist "she", pretty good chiptune music.
overall, pretty nice piece, just gotta not upload when zero bombers are on haha.