Here is the full list of all 30 Pop's achievements.
Shoot the Leprechaun's Coin!
Shoot the Leprechaun to empty its battery!
Shoot the Hot Dog's Mustard twice!
Shoot the Hot Dog to empty its battery. Twice!
Shoot the Orange Soda!
Shoot the UFO to empty its battery. 3 times!
Shoot the Camera to empty its battery. 3 times!
Shoot the Crazy Monkey to empty its battery. 4 times!
Shoot the Trains (left or right) to empty their batteries. 10 times!
Shoot the Monkey's Cymbals twice!
Shoot the Ninja to empty its batteries. 5 times!
Shoot the Ninja's Hadouken 3 times!
Shoot the Blue Donkey to empty its batteries. 5 times!
Shoot the Banana 3 times!
Shoot the Alien to empty its batteries. 8 times!
Beat World Record on Level "Rookie" with 4 Balls!
Beat World Record on Level "Rookie" with 5 Balls!
Beat World Record on Level "Rookie" with 6 Balls!
Beat World Record on Level "Not Too Bad" with 4 Balls!
Beat World Record on Level "Not Too Bad" with 5 Balls!
Beat World Record on Level "Not Too Bad" with 6 Balls!
Beat World Record on Level "Good" with 4 Balls!
Beat World Record on Level "Good" with 5 Balls!
Beat World Record on Level "Good" with 6 Balls!
Beat World Record on Level "Expert" with 4 Balls!
Beat World Record on Level "Expert" with 5 Balls!
Beat World Record on Level "Expert" with 6 Balls!
Beat World Record on Level "Master" with 4 Balls!
Beat World Record on Level "Master" with 5 Balls!
Beat World Record on Level "Master" with 6 Balls!