Full list of all 32 Super Time Force achievements worth 1,375 gamerscore. It takes around 12-15 hours to unlock all of the achievements in the base game.
The base game contains 27 achievements worth 1,000 Gamerscore, and there is 1 DLC pack containing 5 achievements worth 375 Gamerscore.
Complete the 198X time zone
Complete the Medieval time zone
Complete the Future City time zone
Complete the Prehistoric time zone
Complete the Post-Apocalypse time zone
Complete the Ancient Atlantis time zone
Defeat Dr. Infinity
Complete any level with 30 seconds remaining on the clock
Add a new team member to the Super Time Force
Achieve your first STF rank on any level
This one's totally a secret but you'll know it when you see it so hustle and look sharp
Complete any level without leaving any saveable team members behind
Get your first Glorb Badge in a time zone level
Get your first Shard badge
Get all Glorb Badges that existed before the game-shattering event knows as the Ultra Update
Get the Shard Badges in all regular, non-bossy levels
Use Jef's highly explosive rocket launcher to explode 15 enemies on a single level
Complete a... clean... run of any level using only Squirty Harry
Beat any level using only Shieldy Blockerson
Complete a Medieval level using only Lou Don Jim
Kill 3 enemies with a single Charged shot from Aimy McKillin
Fire 7 different charged attacks in a single level
Complete any level using at least 6 different members of the Super Time Force
Kill any enemy by bouncing on it's head, plumber-style
Die within 3 seconds of spawning
Fire 5000 rounds with Jean Rambois' machine gun
Prevent the death of 50 members of the Super Time Force
Complete 5 HellaDeck levels
Complete all HellaDeck Levels
Complete Super Hardcore Mode
Collect all Glorbs in the game
Shatter or collect all Shards in the game