Here is the full list of all 12 Mortal Kombat Arcade Kollection achievements worth 200 gamerscore.
Win 200 matches
Win your first double flawless victory against CPU
Win a flawless victory in a ranked kombat
Finish Ultimate Mortal Kombat 3 on any difficulty
Finish all three games
Finish Mortal Kombat II
Perform your first Animality
Perform your first Friendship
Perform your first Babality
Finish Mortal Kombat
Perform your first Fatality
Win your 1st online 1v1