Here is the full list of all 19 Salty Fish Go! achievements.
Score 1000！
Score 500！
Score 300！
Score 100！
Score 1 !
Score 1500！
Score 2000！
Score 2500！
Score 3000！
Score 3500！
Score 4000
Score 4500！
Score 5000！
Score 6000！
Score 8000！
Score 10000！
Unlock Baggage Fish
Unlock Pants Fish
Unlock Crown Fish