It's good.
It has some good humor but, you see, I don't like sprite flashes very much, still I like the bonus stuff. Well done.
Btw, I don't know if anyone else is experiencing that but in the Samus game I can't seem to shoot down the metroids appearing on the very right corner of the screen. Better check out that glitch and fix it if I'm right. Not that it's such big deal, since it's not the main thing in the flash, but still...