Here is the full list of all 13 NBA Playgrounds trophies - there are 9 bronze, 3 silver and 1 gold.
Unlock the first 150 players
Unlock the first 100 players
Score 150 three-pointers
Execute 50 alley-oops
Win all tournaments
Unlock all tournament challenges
Reach gold level with one player
Score 100 dunks
Unlock the first 50 players
Activate 5 Lottery Picks in the same game
Score from your backcourt without using a lottery pick
Win your first game
Score at the last second