Here is the full list of all 17 HoloBall achievements.
Beat Medium mode without the AI scoring
Score 5 aces in a single round.
Score 15 points on Endurance
Get 10 aces in one match
Get over 6000 pts on Hard
Get over 7000 pts on Medium
Win a match while alternating hits with your left and right hands
Score 100 hits on Zen Mode
Stop the ball with your face!
Get over 8000 pts on Easy
Beat any mode without the AI scoring
Beat the AI on Medium difficulty
Beat the AI on Hard difficulty
Get 10 rim shots in one match
Beat Hard mode without the AI scoring
Beat Hard mode while holding 1 of the paddles above your head the entire game
Beat Easy, Medium and Hard all in a row, without losing a point.