Here is the full list of all 50 Tekken Tag Tournament 2 achievements worth 1,000 gamerscore.
You earned everything.
You became Tekken Lord in Offline Mode.
You unlocked all the content in Fight Lab.
You unlocked 40 characters' ending movies.
You earned Vanquisher in Offline Mode.
You successfully completed 10 throw escapes.
You pulled off 3 low parries.
You pulled off a GREAT combo.
You switched places with your partner 765 times.
You won 10 consecutive battles in Survival in Offline Mode.
You earned 1st dan in Online Mode.
You won a ranked match in Online Mode.
You won a GREAT battle.
You pulled off 3 partner-specific Tag Throws.
You pulled off 3 Direct Tag Assaults.
You escaped from Alisa's Spam Bomb move.
You earned 3 Lucky Boxes.
You earned over 10,000,000G total.
You fought 3 times in Online Mode.
You pulled off 3 Tag Crashes.
You won a PERFECT battle.
You dropped a damsel into the pool in the Eternal Paradise stage.
You pulled off 3 reversals.
You cleared Offline Mode Time Attack within 20 minutes.
You defeated 30 ghosts.
You pulled off 10 Tag Throws.
You cleared an Offline Mode arcade battle solo.
You won a player match in Online Mode.
You won 3 team battles in Offline Mode.
You used an item move.
You cleared an Offline Mode arcade battle with a partner.
Your upper body got wet in the Fallen Garden stage.
You cleared Stage 5 in Fight Lab.
You pulled off 10 Tag Combos.
You pulled off 10 Tag Assaults.
You cleared Stage 4 in Fight Lab.
You pulled off 10 bound combos.
You broke a floor.
You broke a balcony.
You cleared Stage 3 in Fight Lab.
You cleared Stage 2 in Fight Lab.
You pulled off 10 homing attacks.
You cleared Stage 1 in Fight Lab.
You customized a character.
You broke a wall.
You pulled off 3 ukemi.
You pulled off 3 10 hit combos.
You dealt more than 62 damage in a midair combo.
You dealt a total of 1000 damage in Practice in Offline Mode.
You changed the background music using TEKKEN TUNES.