Mahjong Marine Life is a standard mahjong game with marine life theme. Remove all the tiles with fishes and other marine things from the game area.
Remove the mahjong tiles pair by pair until all the mahjong's are gone. You can match a mahjong only if it is not blocked from both sides and that it does not have any other tiles stacked above it.
The 'Show moves' button will show the matching pairs that are available to remove.