Here is the full list of all 12 Paparazzi achievements.
While using the fire drink powerup, get a decoy powerup.
Pass through the same pair of trap doors three times.
Play a match where the lead changes 10 or more times.
Spend less than 15 seconds out of cover on a single level.
Play all 6 levels with one character in one sitting.
Take 5 pictures of the celebrity while they're using the fire drink powerup.
Take 5 pictures of the celebrity before the match even starts.
Dash 300 times in one level.
Smash the Pringo Dingo ice sculpture.
Take 5 pictures of the celebrity while they're using the invisibility potion.
Play a match without hitting a single banana.
Take more successful pictures than those you miss (Have more than 50% accuracy) AND win the match.