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