Final badge has very little to do with the tips provided in the top comments. It's all about getting lucky and getting your yellow madness early. Just do what you're comfortable with for the settings - because it honestly doesn't matter. Just hope you get your yellow madness early on. If you don't, you might as well restart before completing.
Really fun, but it was annoying how the game would seem to load something off-screen (no idea what) and stop my fire every 20 seconds or so. Anyone else get that?
XD