Mega Man 1 Buster Only Challenge

Okay this one may be a bit easier to do than some other challenges, but may also be difficult to do if you're not the best Mega Man player. All you have to do in this challenge is complete Mega Man 1 using only the buster. You can't use a turbo controller btw, that would make it too easy. You can play the Mega Man the Wily Wars version, the original NES version or the Complete Works for the PS1 if you'd like. (Legacy Collection is probably the most convenient way of playing it, and it contains both the NES and Famicom version.) Good luck! I might do this one, I've never actually beat any of the Mega Man games with just a buster.