Here is the full list of all 56 Zone4 achievements.
Clear Arcade 5 times
Achieve "KO" 100 Times
Achieve "PVP item" 10 Times (PVP requires 6 users, 5 minutes or more to play)
Achieve "PVP Team Play" 10 Times (PVP requires 6 users, 5 minutes or more to play)
Achieve "Down" 100 Times
Achieve "KO" 200 Times
Achieve "KO" 500 Times
Achieve "KO" 1000 Times
Achieve "Down" 200 Times
Achieve "Down" 500 Times
Achieve "Down" 1000 Times
Clear Arcade 10 times
Clear Arcade 20 times
Clear Arcade 30 times
Achieve "PVP item" 20 Times (PVP requires 6 users, 5 minutes or more to play)
Achieve "PVP item" 50 Times (PVP requires 6 users, 5 minutes or more to play)
Achieve "PVP item" 100 Times (PVP requires 6 users, 5 minutes or more to play)
Achieve "PVP Team Play" 20 Times (PVP requires 6 users, 5 minutes or more to play)
Achieve "PVP Team Play" 50 Times (PVP requires 6 users, 5 minutes or more to play)
Achieve "PVP Team Play" 100 Times (PVP requires 6 users, 5 minutes or more to play)
Combo 500 times use
Combo 1000 times use
Combo 5000 times use
Combo 10000 times use
Grip 500 times use
Grip 1000 times use
Grip 5000 times use
Grip 10000 times use
Achieve "Avoid" 500 Times
Achieve "Avoid" 1000 Times
Achieve "Avoid" 5000 Times
Achieve "Avoid" 10000 Times
Double attack 200 times use
Double attack 500 times use
Double attack 1000 times use
Double attack 5000 times use
Team attack 200 times use
Team attack 500 times use
Team attack 1000 times use
Team attack 5000 times use
Win in PVP 200 times (PVP requires 6 users, 5 minutes or more to play)
Win in PVP 500 times (PVP requires 6 users, 5 minutes or more to play)
Win in PVP 1000 times (PVP requires 6 users, 5 minutes or more to play)
Win in PVP 5000 times (PVP requires 6 users, 5 minutes or more to play)
PVP MVP achieve 100 times (PVP requires 6 users, 5 minutes or more to play)
PVP MVP achieve 300 times (PVP requires 6 users, 5 minutes or more to play)
PVP MVP achieve 800 times (PVP requires 6 users, 5 minutes or more to play)
PVP MVP achieve 1000 times (PVP requires 6 users, 5 minutes or more to play)
Arcade clear with 4users as a party 100 times
CArcade clear with 4users as a party 300 times
Arcade clear with 4users as a party 800 times
Arcade clear with 4users as a party 1000 times
Arcade “S rank Clear” 100 times
Arcade “S rank Clear” 300 times
Arcade” S rank Clear” 1000 times