Here is the full list of all 22 KING PONG achievements.
Strike a special hit
First victory
500 victories
100 victories
1000 victories
First victory in quickmatch
Win 3 victories in a row
First win against hard ai
First win against king ai
Perfect win against king ai
Win the round with perfect score
Win two round with perfect score
Win a perfect round against king ai
Strike 1000 special hits
Strike over 9000 special hits
Achieve one ultra combo
Succeed to fill all the opponent side
Strike 1000000 times in the ball
Catch 10 points off
Mark 15 points in 1 round
Play 24 hours
Win one online match in less than 300 seconds