Here is the full list of all 18 Girl Fight achievements worth 400 gamerscore. It takes around 4-5 hours to unlock all of the achievements on Xbox 360.
Block 1000 strikes in battle.
Travel over 10000 meters in battle.
Win 10 rounds with Seismic Fist.
Earn and equip two Level 3 Psi Amps and finish a match.
Win 25 rounds without taking any damage.
Win 5 rounds with a throw from behind.
Win 10 matches with nothing but throws.
Strike the first blow in 25 rounds.
Win 5 matches with nothing but kicks.
Win a match with less than 5% health.
Win 5 matches with nothing but punches.
Fight against every opponent and fight in every stage in the game.
Win 5 rounds with full Psi meter.
Perform 10000 striking attacks.
Win 100 matches.
Block an opponent's grab 50 times.
Earn 1000 bars of Psi.
Win 3 consecutive Ranked Matches online.