Here is the full list of all 21 Trash Sailors achievements.
Sink the raft
Defeat 100 enemies
Collect all maps in City region
Collect 500 pieces of trash
Collect screw on world map
5 perfect grinds in one level
Finish level without hitting anything
Collect 250 pieces of trash
Collect all maps in one level
Play level in crazy mode
Finish all crazy modes
Defeat mechanic octopus
Throw 50 bombs overboard
Collect all maps in Jungle region
Collect all maps in Arctic region
Collect all maps in Toxic region
10 perfect grinds in one level
Collect a golden radiator
Find entrance to magic forest
Find entrance to dream level
Collect all screws on world map