Here is the full list of all 14 LightStrike achievements.
Win a game for the first time
Lose a game for the first time
Win 10 games
Win 50 games
Win 100 games
Score by hitting your opponent in the head
Hit your opponent by throwing a disk while facing backwards
Hit your opponent in the back by ricochet of their back wall
Hit your opponent after time runs out
Win a game without your opponent scoring
Score after bouncing your disk off a wall 4 times in one throw
Score after bouncing your disk off a wall 6 times in one throw
Hit your opponent's disk with your own in the air
Hit your opponent with both disks at the same time