what should be improved is the use of the body, e.g i can only hit them with my head and tail but if i was to belly flop, everywhere else but the head and tail does none to the enemy
an easy way to damage enemies fast is by being parallel to the surface of the water and just bobbing your heads against the enemies and if behind also the tail will bob
this game is by fair really amazing with the smoke being an ability, this could even turn into an action adventure!..and what made it more awesome/ realistic was that i was smelling smoke from out my window