Press and hold the spacebar
Get the first petpet in and press spacebar for the rest of the game. It will say game over when you get around 700 – 800 points, a great way to earn some extra neopoints! – mitchell
Go for the petpets that score more
The heavier petpets, like the pirate Snowbunny and the Angelpuss score more points than the lighter petpets, the Buzzer and the Slorg. So when you get a Slorg or Buzzer, miss with those, and when you get a heavy petpet shoot that in. Here’s all the petpets’ weights:
Buzzer: 0.8kg (10points)
Slorg: 0.9kg (11 points)
Baabaa: 1kg (12 points)
Faellie: 1.2kg (13 points)
Angelpuss: 1.4kg (14 points)
Snowbunny: 1.5kg (15 points) – glori_lovegood