Fisherman Sam is an interesting action game. Use direction keys to aim the harpoon, whenever you get 2 or more fish with 1 shot, you will immediately get bonus points! Press space bar to fire freezing bombs.
By the way sharks will steal your fish, but worth a lot of money. Stay away from explosive and poisonous fish, or it will blow up all your fish in the water and shorten your achievement of your harvest. Good luck!