So I've thought I'd get the achievement where you need to get a gold medal with all the debuff skulls on. Only problem is that I don't know what debuff means and that makes it a tad more difficult. I'm guessing it's the skulls making you better, but lowers your final score. If that's the case it's really annoying because I've been like 400 points away from gold with all of those skulls on.
Any help is appreciated. If you got the achievement could you tell me on which map you got it and how you did it?
Thank you.