I got them all with only the clues given...the only exception being I was spelling Gradius incorrectly and it was annoying me until I looked it up...I guess that means I win, although the prize appears to be that I am a nerd who played way too many video games when I was younger
I'm not sure why people keep complaining about the funflow button, I played every level in the game and never had a single problem with it. All in all, I have to say it's a great game. 5/5 all the way