Don't really think this is THE 300kth flash, but..
~The good~
My favorite thing about this flash is the music, I'm a huge fan of Queen, and to hear one of their songs on newgrounds is always a treat, even if it's such a popular song. Also, the music kept going and looping, which was also a plus for me. Well, besides from the Queen music, I liked the intro, though it didn't make muuch sence, it was nicely aninmated and had okay music in it.
~The bad~
First off, I don't think this is actually THE 300,000th flash as I would like some proof, also there was not much to it. Maybe a short animation to show that you actually tried on this flash, besides just floppinig on a random introduction and a picture that says 300.
Overall, a great choice of song in this flash, but could've been more effort put into this. I hope this review was helpful!
3/5