This game mode becomes unlocked under arcade mode after you have beaten the game on any difficulty.
In this mode you must go through each level on Medium and stay ahead of the falling time limit. You get more time by shooting enemies, and get even more time from headshots and explosions.
+5 seconds per kill
+6 seconds for headshots
+10 seconds for melee kills
+bonus to the kill for Explosions
For this game mode you must play the entire chapter without dying. Levels are broken up into chapters, and some into sub chapters. Do not get this confused with hardcore NY minute which requires all levels to be beaten in one sitting without dying.
Try to always use as much bullet-time as possible as well as find as many pain killers as you can.
You can put soft lock on in order to help with your aim a bit.
Another helpful hint is that you can hit the back button to turn off weapon attachments and press left and right on the D pad to change your viewing angle.
I have personally recorded each mission to show you how to get through.
UPDATE 2 - Here is a list of all pain killers in the game. Props to Pr1nce0fDarknez for giving me the link and Infernal on X360ahttp://www.xbox360achievements.org/forum/showthread.php?t=37...
UPDATE - I NOW HAVE COMPLETED ALL NY MINUTE MISSIONS WITH PLATINUM MEDAL. All videos below now reflect this.
UPDATE - I have now completed Hardcore NY Minute. It was a pain! I died so many times over game glitches and stupid situations but being persistent is key!
Click the link below for the videos of me doing Hardcore NY Minute. If you click on the videos and go to Youtube you can see time stamps for each section and main event for easy navigation.http://www.youtube.com/playlist?list=PL2B8BF11F29A8DE07&...
All videos were recorded while streaming at http://www.twitch.tv/markyshizzle