Here is the full list of all 11 Strength of the Sword: ULTIMATE achievements worth 1,000 gamerscore.
Reach 111'000 points in the survival pit
Conquer each of the 11 stages with 100% DEFENSE score
Conquer each of the 11 stages with 100% OFFENSE score
Conquer each of the 11 stages with 100% SPEED score
Defeat The Dark Mechanist
Unlock all the gear in the game
Reach a MatchMakingRanking(MMR) of over 2100
Get 11 kills with a Finishing move
Manage to stay off the ground for 6 seconds without using the JETPACK
Get 11 Double Kills
Kill 11 enemies without giving them a chance to attack at all