Super Hardcore mode...
	Various Steam Achievements...

Complete the game to unlock the "Super Hardcore mode" option at the main menu. In this mode, you will have access to any characters unlocked in Normal mode. However, each member will die and remain dead until you have "saved" them again through their original unlocking process.

Achievement	How to unlock
1,000,000 BC Completed!	Complete the Prehistoric time zone.
198X Completed!	Complete the 198X time zone.
3 Birds 1 Stone	Kill 3 enemies with a single charged shot from Aimy McKillin.
9600 BC Completed!	Complete the Ancient Atlantis time zone.
All of the Glorbs	Collect all glorbs in the game.
Asplosion	Use Jef's highly explosive rocket launcher to explode 15 enemies on a single level.
Baby's First Glorb	Get your first Glorb Badge.
Decked Out	Complete all HellaDeck Levels.
Defence is the New Offence	Beat any level using only Shieldy Blockerson.
Gotta Save Them All!	Complete any level without leaving any saveable team members behind.
Head Banger	Kill any enemy by bouncing on its head, plumber-style.
Hella Fun	Complete 5 HellaDeck levels.
I Challenge You to a Duel	Complete a Medieval level using only Lou Don Jim.
Impartiality	Complete any level using at least 6 different members of the Super Time Force.
Infinity	Defeat Dr. Infinity.
Number One Shard	Get your first Shard badge.
OMG You Sharded!	Shatter or collect all shards in the game.
Range of Fire	Fire 7 different charged attacks in a single level.
Saxamaphone	Use Saxton Hale to punch 100 enemies right in their stupid faces.
Something Smells Rank	Achieve your first STF rank on any level.
Speed Freak	Complete any level with 30 seconds remaining on the clock.
Talent Scout	Add a new team member to the Super Time Force.
Team Player	Prevent the deaths of 50 members of the Super Time Force.
That Was Quick	Die within 3 seconds of spawning.
THE HARDEST OF CORE	Complete Super Hardcore Mode.
The Pyro Show	Burn up a whole level and complete it using only Pyro.
The Runs	Complete a... clean... run of any level using only Squirty Harry.
They Are Looking	This ones totally a secret but you'll know it when you see it so hustle and look sharp.
Tossy Tossy Boom Boom	Toss and shoot 100 of Zoey's propane tanks to asplode them!
Whole Lotta Lead	Fire 5000 rounds with Jean Rambois' machine gun.
Year 199X Completed!	Complete the Post-Apocalypse time zone.
Year 3072 Completed!	Complete the Future City time zone.
Year 673 Completed!	Complete the Medieval time zone.