The lights are on
I recently got the Freeflow Gold achievement in Batman Arkham Asylum. Personally, I thought the combat challenges were the most challenging part of the game. I would like to share some tips to help others get the combat challenge achievements (Freeflow Bronze, Silver and Gold.)
Do NOT Button Mash!!! I can't emphasize this enough. It took me awhile to stop, but I finally got myself to slow down and quit the button mashing. This only hinders you, it doesn't help - period. Especially in the extreme challenges, when I was surrounded by a great number of enemies, I would often get frantic and start button mashing. Bad, bad, bad.
Variety If you haven't already, work on the Freeflow Perfection achievement. Using all of Batman's moves is the most important thing you can do to help your score. If you get a combo using all of the moves, you can earn 5,000 bonus points (per round). Make a concious effort to use all of Batman's moves. Even if you don't get the Perfect Combo, you can get 1,000 to 3,500 extra points for variety.
Round One By the end of the first round, you should have your first medal, or at least very close to it. In the extreme challenges, it can be tough to get your first medal by the first round. On the last challenge, the first medal is 30,000 and I had 24,000ish but that was close enough. It is very important that you score as high as you can in the first round since it's the easiest round. If you don't get your first medal or close to it, just start over.
Mistakes There are some mistakes in the combat challenges that are really easy to make. Get these things in your head:
Misc. Here are some more, various tips.