Oh, my. That's hilarious!! :lol
What's your formula for these ingenious anagrams?
well, it's always different. EARF was just something that popped into my mind when i looked at FEAR. no anagram generator will give you that obviously.
if you want something really unique or funny or something that's a comment on the game in question, you usually have to mess with anagram generators for hours (did that with skyrim and zelda). you have to cherry pick and isolate words that sound interesting and generate new anagrams and isolate more words and try to make sense of the gibberish you get by re-arranging everything and running leftovers through the generator again. you always have to have a plan b and it's worth it to work with words and phrases that can be slightly altered (adding "s" or "a" or "the" etc.) when you get stuck. especially when you work with long titles. but most of the time the perfect anagram doesn't work because of a single letter that doesn't go anywhere.
you should always keep short filler words in mind but more importantly those special words that no anagram generator will give you and then force them, stuff like "meh" or "lol" or names in general etc. (that's how i came up with the "meh, mod it retro" one, although that was almost completely done by hand, because "mod" and "meh" and i think even "retro" are not part of a generator's vocabulary.)
sometimes you just get lucky with a short title, the generator will spit out only a handful of results and one of them will be gold. bioshock = sick hobo was one of those. really, i still think the simplest ones are usually the best ones